History Fanon / FireEmblem

* ''[[Fanon/FireEmblemFates Three Houses]]''

** Given Lucina is TheStoic, [[WiseBeyondTheirYears mature for her age]], and [[WhenSheSmiles the times she smiles]] [[PerpetualFrowner are few and far between]], fanon will often portray her as more positive, curious and cute. ''Heroes'' seems to have made this AscendedFanon given Lucina is more cheerful in some of her variants.
* ''VideoGame/FireEmblemFates'':
** There's several theories going about how Takumi would've massacred the unassuming Port Dia from ''Conquest''[='s=] [[ThatOneLevel infamous]] Chapter 10. [[spoiler:And given the fact that Takumi was already possessed at that point and the fact that Hoshido is heavily implied to have [[HeWhoFightsMonsters gone off the deep end a little]], [[FridgeHorror it's definitely not outside the realm of possibility]].]]
** One of the main criticisms of ''Fates'' is that Hoshido is too blatantly "good" and that Nohr is too blatantly "evil" apart from the playable cast from Nohr being mainly sympathetic. It's common in fan fiction attempting to rectify this to make Hoshidan culture xenophobic by nature in order to round it out a little.
** Similar to the example of the Avatars and [[spoiler:Morgan/Mark]] above, the child of this game's Avatar will be referred as Kana if male, or Kan'''n'''a if female.
** That [[spoiler:Odin, Selena, and Laslow are the ''Future Past'' versions of Owain, Severa, and Inigo]] is a very persistent theory, even though their supports directly contradict this.
** Some fans believe that characters whose names were shortened (Suzukaze to Kaze, Mozume to Mozu, and Kazahana to Hana for example) are still named this, with the localized names simply being {{affectionate nickname}}s. Additionally, this also works for Benny, as it is also a possible nickname for Benoit.
** Relatedly, some fics incorporate both names for the Avatar by having their name changed from "Kamui" to "Corrin" by Garon when he kidnaps them. This is outright stated to be untrue in canon, but some [[FanonDiscontinuity choose to ignore that]] to do away with the FridgeLogic of (in the original Japanese version) no one in Nohr (or the Avatar themself) questioning the Avatar having an Eastern-sounding name in their West-inspired country when their true nationality was supposedly a secret or (in the English localization) the Avatar being given a Western-sounding name by their Eastern-inspired mother.
** Midori being a drug dealer has been a very popular headcanon.
** Peri's children tend to be given her blue and pink hair in fanart, instead of just the blue they get in-game. The most common example is Soleil, likely due to her default portrait showing her with [[RoseHairedSweetie grandmother Olivia's pink hair]].
** Similarly, the Avatar's non-Kana children tend to be given pointy ears in fanart.
** While the games leave the time frame of the Avatar's kidnapping ambiguous, most fans tend to agree that they were about five or six when it happened.
** Most fics including twin Avatars have the male be named Corrin and the female named Kamui.
*** As such, the male is often aligned with Nohr (as he has a "western" name), while the female is aligned with Hoshido (with the Japanese name), even though most official material suggests that the "canon" version is the other way around.
** Crossed with FanonDiscontinuity, a lot of fan art and fanfiction depicts the first generation waiting until after the war is over to have children, avoiding any plot holes potentially caused by the Deeprealms.
** The idea that Izana [[spoiler:faked his own death in ''Revelation'']], for some reason or another, is gaining some steam in the Western fanbase. It helps that it's not exactly out of character.
** As the game never reveals the identity of [[spoiler:the third person to get the blessing of the Rainbow Sage]], a lot of fans like to assume that it was [[spoiler:Gunter]]. There's also a jokier fanon that assumes the reason no one mentions them by name is because it was [[spoiler:[[VideoGame/FireEmblemAwakening Kellam]]]].
** In the Japanese version of Leo's bio, it's said that he loves tomatoes the most out of the cast. The fans ran away with this, [[CharacterExaggeration making him obsessed with the little red fruit]]. This was given a nod in the localised version, where the relevant line is now "Objectively loves tomatoes more than anyone else ever could."
** Camilla's hairstyle is commonly assumed as a way to conceal a scar (or worse, the loss of one of her eyes) she obtained during the Nohrian concubine wars.
** While never outright confirmed, it is generally believed that Mikoto was [[spoiler:Sumeragi's concubine]] before Ikona's death since Corrin [[spoiler:was said to have been an infant when Sumeragi took them and Mikoto in]] but Takumi and Sakura being younger than them while also Ikona's children means she would have had to still be alive then. Combine this with how [[spoiler:the Hoshido siblings sans Ryoma believed Corrin was their paternal half sibling even though they should know Ikona was alive when they were born]], and this is easy to infer.
** [[spoiler:Corrin/Azura]] shippers (or even fans who do not ship them but want to make the ShipTease less squicky) uncomfortable with the idea of them being KissingCousins through their mothers being sisters work around this via headcanoning that [[spoiler:Mikoto and Arete]] are actually either adoptive sisters, step-sisters, or [[FamilyOfChoice spiritual sisters]].
* ''VideoGame/FireEmblemThreeHouses'':
** A lot of post-game Dimitri fanart depicts him with his NG+ hairstyle (long hair but tied back). Some also like to imagine him wearing his hair like that after [[spoiler:Chapter 17, to accompany his [[HesBack return to form]]]].
*** Speaking of NG+ hairstyles, Claude's bandana hairstyle is usually associated [[spoiler: with his identity as Khalid/Almyran royalty,]] while Edelgard's side ponytail hairstyle, just like Dimitri, is also associated with post-game content, specially when in involves Byleth, as well as [[spoiler: hypothetical routes where she decides to unite with the other Lords against TWSITD.]]
** Many stories that bring up Claude's status [[spoiler:as an Almyran prince]], especially origin stories, will often [[spoiler:have him [[IHaveManyNames with a different birth name]], with Claude either as a middle name or a pseudonym he picked upon moving to Leicester]]. His own NG+ hairstyle also gets put into use because of said status. [[spoiler:This would end up becoming actual canon when the Nintendo Dreams Magazine interview revealed that Claude is in fact a false name, and that his real name is Khalid]].
** Some fans believe that Byleth stays the same age as they were back in Part I [[spoiler:due to Sothis using her powers to place Byleth's body in stasis for 5 years and ages normally after they awaken]]. In addition, it's also believed that [[spoiler:Byleth having full access to Sothis' powers allows them to control the passage of time their body experiences so they can age together with their loved ones in the endings they have with their spouses in non-Crimson Flower routes]]. Or alternatively, [[spoiler:Byleth gives their chosen love interest their blood due to becoming ambiguously Nabatean after merging with Sothis or their love interest receives Rhea's blood so they will age slowly with them, due to the fact that none of Byleth's S-Rank paired endings with human characters mention the death of their love interest]].
** With the other Nabataeans' transformations appearing to follow TheFourGods (The Immaculate One - Dragon, The Immovable - Tortoise, The Wind Caller - Bird), the only one we don't see [[spoiler: Seteth/Cichol's]] is assumed to be tiger-like to complete the quartet. [[spoiler: It's unclear whether Flayn has a Divine Beast form, but due to her love of the ocean and eating fish, some fans imagine a plesiosaur-like sea dragon.]]
** Many people like to think Claude hatched his white wyvern himself and/or grew up with it. Sometimes the wyvern is also depicted as being isolated/abandoned by its herd due to having albinism.
** In post non-Verdant Wind fanworks, it's common to see Claude coming back as the [[spoiler:King of Almyra and forming an alliance with Dimitri/Edelgard and/or Byleth]].
** Byleth being able to have as many meals as they have activity points is probably meant to be [[GameplayAndStorySegregation purely for gameplay]], but a lot of fans like to interpret them as actually being a BigEater and even offer an explanation for why they are like this: [[spoiler:they're eating for themselves as well as Sothis.]] (There is an offhand mention of them eating a lot during a party but it's only the one time.) ''Three Hopes'' would confirm that Byleth indeed has a large appetite.
** In Dimitri/Female Byleth post-game fanworks, it's common to depict the pair having a son as their first born child. This was fueled from Gilbert's solo ending where [[spoiler: it's stated that he trained the future prince after the war, which many took as confirmation that Dimitri has a son with whomever he marries. Especially notable since most of Dimitri's paired endings don't explicitly mention children]].
*** The son is almost always depicted with Dimitri's blonde hair, and will usually look exactly like him. It can be helped further by the fact that [[StrongFamilyResemblance Dimitri looks exactly like his own father, Lambert.]] On top of that, Dimitri's son is usually given the Crest of Blaiddyd [[PlayedForLaughs mostly because it's funny that he]] [[GenerationXerox can accidentally break stuff like Dimitri does]] instead of Byleth's Crest of Flames. Basically, Dimitri's son ends up being more like Dimitri's ''clone''.
*** It's not unusual for their son to be named after [[DeadGuyJunior Jeralt or Lambert]]. [[TakeAThirdOption Or both]].
** It's generally assumed by the fanbase that Leonie and Ferdinand, and less commonly Sylvain and Annette, have freckles.
** Some have interpreted Byleth as having a bad knee from an old injury received from their mercenary days, explaining why they only have one poleyn around their left knee.
** The fact the almost all text in the game refers to Byleth with they/them pronouns (or as "the professor" and dodging pronouns entirely when possible)[[note]]Because the game is fully voice acted, differentiating between "he" and "she" would require several hours of extra recordings[[/note]] means many members of the LGBTFanbase consider them to be nonbinary.
** Dimitri's post-timeskip cape originally belonged to his father.
** Some fanart depicts Byleth with pointed ears after [[FusionDance joining souls]] with Sothis.
** Lots of fanart depicts how Dimitri will carry Byleth [[spoiler: after they've merged with Sothis]] differently based on their gender. He'll just throw Male Byleth like a sack of potatoes over his shoulder, but does a gentler BridalCarry for the female. It would make sense given [[KnightInShiningArmor his personality]], especially after he says an apology to his unconscious female professor before picking her up. This ''is'' one of the few times the game doesn't use GenderInclusiveWriting. [[https://i.redd.it/g0obcm32ebl31.png All of the house leaders have different lines for this particular scene,]] and Dimitri is only the one that carries them himself. The other house leaders sometimes volunteer someone else. Nothing is said about ''how'' Byleth was carried back, just that they were.
*** This is treated as a very romantic scene for many Female Byleth/Dimitri fanworks because of how inherently intimate it is.
** In part because neither character is ever shown on screen, most fan interpretations of Holst and Glenn tend to carry the same elements. Holst is generally pink-haired and as muscle-bound as Balthus, though on occasion Holst will lack those muscles. Glenn tends to have Felix and Rodrigue's long blue hair and generally looks like Felix if he lightened up or a younger version of Rodrigue. So basically clones of their younger siblings. ''Three Hopes'' would go on to confirm that Holst was indeed a pink-haired, muscle-bound man.
** Some have taken to interpreted Byleth as being autistic as some of their behavior does line up with similar behaviors among those on the spectrum.
** Due to a line said by Ferdinand, where he refers to himself as the only [[OverlyNarrowSuperlative legitimate]] son of Duke Aegir, a number of players believe that Ferdinand has half-siblings, and calls himself the only legitimate one as a way of indicating his status or position for those who may assume other wise. As part of this, there exists a somewhat popular fan idea that Kronya is Ferdinand's half-sister, pointing to said line, Kronya's orange hair, and the implication of Duke Aegir working with TWSITD. Of course none of this is actually supported in game, but it remains a popular idea.
** Despite Silver Snow being the intended default route for the Black Eagles (and the game in general), very few fans consider it such, instead treating Crimson Flower as ''the'' Black Eagles route, with Silver Snow usually referred to as the Church Route. To wit, [=Ao3=] defaults the "Crimson Flower" tag to "Fire Emblem: Three Houses Black Eagles Route".
** The idea that Hilda hates Edelgard is common in the fandom due to Hilda being unrecruitable on only the Crimson Flower route. There's little in-game evidence of Hilda holding any strong opinions towards her, and she's always initially reluctant when recruited outside of the Alliance, but it's often seen in fan works and memes, whether PlayedForLaughs or [[PlayedForDrama otherwise.]]
** Thanks to Marianne mentioning in her support conversations with Byleth that back before the TimeSkip she regularly prayed to die and grew out of that self-loathing thanks to Byleth, a decent amount of the fandom thinks that she doesn't appear post-timeskip if she wasn't recruited beforehand because without Byleth's influence, she commits suicide. The game doesn't outright say why she doesn't appear, beyond her fate if defeated on Classic difficulty pre-timeskip being that she simply rode away one day and [[UncertainDoom was never seen again.]] Some see this as the game alluding to her killing herself without saying so outright, though the game does also establish that Margrave Edmund holing up and waiting out the fighting would be like him, with no reason why Marianne couldn't be with him.

*** Relatedly, some fics incorporate both names for the Avatar by having their name changed from "Kamui" to "Corrin" by Garon when he kidnaps them. (This is outright stated to be untrue in canon.)

** Camilla's PeekABangs hairstyle is commonly assumed as a way to conceal a scar (or worse, the loss of one of her eyes) she obtained during the Nohrian concubine wars.

** Lots of fanart depicts how Dimitri will carry Byleth [[spoiler: after they've merged with Sothis]] differently based on their gender. He'll just throw Male Byleth like a sack of potatoes over his shoulder, but does a gentler BridalCarry for the female. It would make sense given [[KnightInShiningArmor his personality]], especially after he says an apology to his unconscious female professor before picking her up. This ''is'' one of the few times the game doesn't use GenderNeutralWriting. [[https://i.redd.it/g0obcm32ebl31.png All of the house leaders have different lines for this particular scene,]] and Dimitri is only the one that carries them himself. The other house leaders sometimes volunteer someone else. Nothing is said about ''how'' Byleth was carried back, just that they were.

** A decent amount of the fandom like to say Marianne's lack of appearance post-timeskip is that she committed suicide. The game itself doesn't outright say why she doesn't appear, but it heavily implies it was simply because her adopted father kept her out of the conflict.

* Given Lucina is TheStoic, [[WiseBeyondTheirYears mature for her age]], and [[WhenSheSmiles the times she smiles]] [[PerpetualFrowner are few and far in-between]], fanon will often portray her as more positive, curious and cute. ''Heroes'' seems to have made this AscendedFanon given Lucina is more cheerful in some of her variants.

* [[VideoGame/FireEmblemShadowDragonAndTheBladeOfLight Marth]], [[VideoGame/FireEmblemTheBindingBlade Roy]], and [[VideoGame/FireEmblemPathOfRadiance Ike]] from ''Franchise/FireEmblem'' are often believed to have a connection with each other because of ''VideoGame/SuperSmashBros'' In reality, [[ThematicSeries their games don't even take place in the same universe]]. (Although the CanonWelding ''[[VideoGame/FireEmblemAwakening Awakening]]'' implies a great degree of interconnectivity between these different universes all the same.)

** After the release of ''Awakening'', it's common to think of the Dragon's Gate as an Outrealm Gate connected to Archanea, the world of Marth's games. This is because dragons are all but wiped out in Elibe, but are said to be plentiful in the world beyond the Dragon's Gate, as well as ''VideoGame/FireEmblemFates'' having a Dragon's Gate that functions the same way as ''Awakening''[='s=] Outrealm Gate.

** Similar to [[VideoGame/FireEmblemPathOfRadiance Ike]] below (albeit to a much lesser degree), it's not uncommon for fan works to depict [[CanonName Mark]] [[FeaturelessProtagonist the]] [[OCStandIn Tactician]] (aka [[PlayerCharacter you]]) as WalkingTheEarth post-game, owing to how they disappear after the events of the story despite being named the godparent of either Roy or Lilina and promising to meet up again with Eliwood or Hector in the future. In the event this leads to them crossing over into another world, this usually is combined with the above "Dragon's Gate = Outrealm Gate" theory, with the added wrinkle that this also [[CanonWelding makes Mark and Robin the same character]].

** Occasionally, the fact that Ike canonically departs from Tellius at the end of ''Radiant Dawn'' for parts unknown is used to have him cross over into other ''Fire Emblem'' universes (or new ones entirely). ''VideoGame/FireEmblemAwakening'' does something similar. In one of the [=SpotPass=] sidequests Chrom meets a character named Priam who wields Ike's sword Ragnell and claims to be the descendant of the "Radiant Hero" who traveled to Archanea from another world. Many ''Fire Emblem'' characters, including Marth, Ike, and Roy also all appear in ''Awakening'' as DLC characters, though these are apparitions known as "Einherjar" modeled after ancient heroes rather than the actual characters themselves.

** Shinon and Gatrie's support conversations in ''[[VideoGame/FireEmblemPathOfRadiance Path of Radiance]]'' involve Gatrie seemingly meeting the girl of his dreams, only for it to be revealed that she's actually a scam artist trying to con him out of all his money. Many fans believe this woman was none other than Heather, a female thief introduced in ''Radiant Dawn'' who frequently seduces men to get them to do her bidding. It's never directly stated in the game, but it just really sounds like something she'd do.

** The Avatar and/or [[spoiler:their child Morgan]] are hinted to have a connection to [[PlayerCharacter the Tactician]] from ''The Blazing Blade''. Similar clothing and map sprites aside, Lyn's Einherjar has a hunch that the Avatar and Tactician might be one and the same (she recognizes them on sight and feels even stronger about her convictions upon learning the Avatar woke up in a strange place with no recollection of how they got there, just like her Tactician; the player can either confirm or deny her suspicions), whereas [[spoiler:Morgan]]'s name in the Japanese version is Mark ([[SpellMyNameWithAnS albeit spelled as "Marc"]]). Both characters also have access to the [[PrestigeClass Grandmaster class]], which was the title awarded in the Japanese version of ''Blazing Sword'' for obtaining the highest Tactician ranking.
** Thanks to The Future Past DLC chapters in ''Awakening'' and its use of [[spoiler:both the male and female Morgan as bosses]], fans have begun to latch onto the idea that [[spoiler:the Avatar actually had [[HalfIdenticalTwins twin children]] instead of a child of the opposite gender, so as to use both Morgans. The female Morgan usually keeps [[GenderBlenderName her name]], whereas the male one gets his Japanese name, Mark.]]

** The supposed "LoveTriangle" between [[TheHero Chrom]], [[BrokenAce Cordelia]] and [[CuteClumsyGirl Sumia]], so frequently used [[ShipToShipCombat to bash one of the ladies]] [[DieForOurShip to favor one couple]]... doesn't actually exist in canon. In reality, not only [[SecondLove can both girls end up with other guys than Chrom]] depending on which supports the player gets, but Cordelia and Sumia are shown in their supports to be good friends, and Chrom '''isn't even mentioned in their talks'''.
** Grima as [[DracoInLeatherPants a redeemable character]]. The only support that really exists for this is ''VideoGame/FireEmblemHeroes'', which is deuterocanonical and was responsible for the derailment of several other characters. In ''Heroes'', Grima's confessions are sympathetic. Male Grima talks about how HumansAreTheRealMonsters and explains that that's why he became a villain, while Female Grima mentions that she hopes to [[WellIntentionedExtremist unite humans and dragons through destruction]]. That said, in ''Awakening'' they have no redeeming qualities. They were responsible for an untold amount of destruction, and even their ''Heroes'' versions are [[CardCarryingVillain Card-Carry Villains]] who express doubt that the Summoner will ever show them the power of love and compassion.

** Crossed with FanonDiscontinuity, a lot of fanart and fanfiction depicts the first generation waiting until after the war is over to have children, avoiding any plot holes potentially caused by the Deeprealms.

** As the game never reveals the identity of [[spoiler:the third person to get the blessing of the Rainbow Sage]], a lot of fans like to assume that it was [[spoiler:Gunter]]. There's also a jokier fanon that assumes the reason no-one mentions them by name is because it was [[spoiler:[[VideoGame/FireEmblemAwakening Kellam]]]].
** In the Japanese version of Leo's bio, it's said that he loves tomatoes the most out of the cast. The fans ran away with this, [[CharacterExaggeration making him obsessed with the little red fruit]]. This was given a nod in the localised version, where the relevant line is now "Objectively loves tomatoes more than anyone else ever could".

* [[VideoGame/FireEmblemShadowDragonAndTheBladeOfLight Marth]], [[VideoGame/FireEmblemTheBindingBlade Roy]], and [[VideoGame/FireEmblemPathOfRadiance Ike]] from ''Franchise/FireEmblem'' are often believed to have a connection with each other because of ''VideoGame/SuperSmashBros''. In reality, [[NonLinearSequel their games don't even take place in the same universe]]. (Although the CanonWelding ''[[VideoGame/FireEmblemAwakening Awakening]]'' implies a great degree of interconnectivity between these different universes all the same.)

** It’s not unusual for fans to connect their Avatar's together through one means or another. Such as Robin being a descendant of Kris, or Marc, Kris, Robin, and Corrin being the same reincarnated soul. Or some combination of the two options. It helps that ''Fates'' teased the possibility of Robin and Corrin being the same soul without outright confirming anything, choosing to leave it up to player interpretation. Kiran and Byleth, however, seem to be exempt from this, though not always, likely because of no obvious connection to past games in Byleth’s case (not counting Anna's usual appearance.)

** There are many fanon theories about what happened to the cast of the game during the 20 year TimeSkip between it and ''VideoGame/FireEmblemTheBindingBlade''. Lucius is often assumed to be the caretaker of Lugh and Raigh's orphanage who was killed during Bern's invasion, since his ''The Blazing Blade'' ending mentions him opening an orphanage. Guy is assumed to have been killed in a duel with Karel some time after ''The Blazing Blade'' (their A Support has them promising to duel someday), and Karel's [[MyGodWhatHaveIDone guilt over this]] is said to have been a factor in his HeelFaceTurn between games (along with his sister's death from illness).
** In a support conversation between Klein and Clarine in ''The Binding Blade'', Klein calls Clarine out on making another healer cry for healing Klein before Clarine had a chance to. The identity of this healer is not stated, but is usually assumed to be the Cleric Ellen, as she is the only other notable female healer to be enough of a ShrinkingViolet to take that treatment from Clarine.

** Occasionally, the fact that Ike canonically departs from Tellius at the end of ''Radiant Dawn'' for parts unknown is used to have him cross over into other ''Fire Emblem'' universes (or new ones entirely). To a much lesser degree, this is also used for [[CanonName Mark]] [[FeaturelessProtagonist the]] [[OCStandIn Tactician]] (the PlayerCharacter from ''VideoGame/FireEmblemTheBlazingBlade''), who also disappears after the events of the story, despite being named the godparent of either Roy or Lilina and promising to meet up again with Eliwood or Hector in the future. ''VideoGame/FireEmblemAwakening'' does something similar. In one of the [=SpotPass=] sidequests Chrom meets a character named Priam who wields Ike's sword Ragnell and claims to be the descendant of the "Radiant Hero" who traveled to Archanea from another world. Many ''Fire Emblem'' characters, including Marth, Ike, and Roy also all appear in ''Awakening'' as DLC characters, though these are apparitions known as "Einherjar" modeled after ancient heroes rather than the actual characters themselves. Additionally, [[spoiler:the Avatar and/or their child Morgan are hinted to have a connection to the Tactician from ''The Blazing Blade''. Similar clothing and map sprites aside, Lyn has a hunch that the Avatar and Tactician might be one in the same (she recognizes them on sight and feels even stronger about her convictions upon learning the Avatar woke up in a strange place with no recollection of how they got there, just like her Tactician; the player can either confirm or deny her suspicions), whereas Morgan's name in the Japanese version of ''Awakening'' is Mark ([[SpellMyNameWithAnS albeit spelled as "Marc"]]). Both characters also have access to the [[PrestigeClass Grandmaster class]], which was the title awarded in the Japanese version of ''Blazing Sword'' for obtaining the highest Tactician ranking.]]

*** Furthermore, thanks to the conversations in the Hot Spring Scramble map between [[spoiler:the male Morgan and Inigo or the female Morgan and Cynthia where it is revealed that the Morgan has an exact extra copy of their parent's tactics book]], many fans have began to believe that [[spoiler:the Morgan we get and recruit is actually from the Future Past timeline as if the Avatar stands next to the opposite gender Morgan during The Future Past (i.e. the same gender as our Morgan), a conversation will play out where the Avatar gives the Morgan their tactics book and Morgan will reveal she already has the exact same one (presumably from the Avatar from Future Past timeline)]].

** Grima as a [[DracoInLeatherPants redeemable character]]. The only support that really exists for this is ''VideoGame/FireEmblemHeroes'', which is deuterocanonical and was responsible for the derailment of several other characters. In ''Heroes'' Grima's confessions are sympathetic. Male Grima talks about how HumansAreTheRealMonsters and explains that that's why he became a villain, while Female Grima mentions that she hopes to [[WellIntentionedExtremist unite humans and dragons through destruction]]. That said, in ''Awakening'' they have no redeeming qualities. They were responsible for an untold amount of destruction, and even their ''Heroes'' versions are {{Card Carrying Villain}}s who express doubt that the Summoner will ever show them the power of love and compassion.
* Given Lucina is TheStoic, [[WiseBeyondTheirYears mature for her age]] and the times she smiles are few and far in-between, fanon will often portray her as more positive, curious and cute. ''Heroes'' seems to have made this AscendedFanon given Lucina is more cheerful in some of her variants.

** Occasionally, the fact that Ike canonically departs from Tellius at the end of ''Radiant Dawn'' for parts unknown is used to have him cross over into other ''Fire Emblem'' universes (or new ones entirely). To a much lesser degree, this is also used for [[CanonName Mark]] [[FeaturelessProtagonist the]] [[OCStandIn Tactician]] (the PlayerCharacter from ''VideoGame/FireEmblemTheBlazingBlade''), who also disappears after the events of the story, despite being named the godparent of either Roy or Lilina and promising to meet up again with Eliwood or Hector in the future. ''VideoGame/FireEmblemAwakening'' does something similar. In one of the [=SpotPass=] sidequests Chrom meets a character named Priam who wields Ike's sword Ragnell and claims to be the descendant of the "Radiant Hero" who traveled to Archanea from another world. Many ''Fire Emblem'' characters, including Marth, Ike, and Roy also all appear in ''Awakening'' as DLC characters, though these are apparitions known as "Einherjar" modeled after ancient heroes rather than the actual characters themselves. Additionally, [[spoiler:the Avatar and/or their child Morgan are hinted to have a connection to the Tactician from ''The Blazing Blade''. Similar clothing and map sprites aside, Lyn has a hunch that the Avatar and Tactician might be one in the same (she recognizes them on sight and feels even stronger about her convictions upon learning the Avatar woke up in a strange place with no recollection of how they got there, just like her Tactician; the player can either confirm or deny her suspicions), whereas Morgan's name in the Japanese version of ''Awakening'' is [[NamesTheSame Mark]] ([[SpellMyNameWithAnS albeit spelled as "Marc"]]). Both characters also have access to the [[PrestigeClass Grandmaster class]], which was the title awarded in the Japanese version of ''Blazing Sword'' for obtaining the highest Tactician ranking.]]

** Byleth being able to have as many meals as they have activity points is probably meant to be [[GameplayAndStorySegregation purely for gameplay]], but a lot of fans like to interpret them as actually being a BigEater and even offer an explanation for why they are like this: [[spoiler:they're eating for themselves as well as Sothis.]] (There is an offhand mention of them eating a lot during a party but it's only the one time.)

** In part because neither character is ever shown on screen, most fan interpretations of Holst and Glenn tend to carry the same elements. Holst is generally pink-haired and as muscle-bound as Balthus, though on occasion Holst will lack those muscles. Glenn tends to have Felix and Rodrigue's long blue hair and generally looks like Felix if he lightened up or a younger version of Rodrigue. So basically clones of their younger siblings.

** It is generally accepted within the fandom that Marianne's disappearance post-timeskip if not recruited is due to suicide, as implied by her A support with Byleth, to the point that people have tried to add it to her character page.

** Despite Silver Snow being the intended default route for the Black Eagles (and the game in general), very few fans consider it such, instead treating Crimson Flower as ''the'' Black Eagles route, while fans sympathetic to Rhea and the church usually prefer Azure Moon. To wit, [=Ao3=] defaults the "Crimson Flower" tag to "Fire Emblem: Three Houses Black Eagles Route".

** Despite Silver Snow being the intended default route for the Black Eagles (and the game in general), very few fans consider it such, instead treating Crimson Flower as ''the'' Black Eagles route, while fans sympathetic to Rhea and the church usually prefer Azure Moon. To wit, [=Ao3=] defaults the "Crimson Flower" tag to "Fire Emblem: Three Houses Black Eagles Route".

** Peri's children tend to be given her [[MulticoloredHair blue and pink hair]] in fanart, instead of just the blue they get in-game. The most common example is Soleil, likely due to her default portrait showing her with [[RoseHairedSweetie grandmother Olivia's pink hair]].

** Despite Silver Snow being the intended default route for the Black Eagles (and the game in general), very few fans consider it such, instead treating Crimson Flower as ''the'' Black Eagles route, while fans sympathetic to Rhea and the church usually prefer Azure Moon. To wit, [=Ao3=] defaults the "Crimson Flower" tag to "Fire Emblem: Three Houses Black Eagles Route".
** Similarly, fans of Dimitri often treat him as a hero or even the main character of the game as a whole, when Silver Snow was confirmed to be the intended "default" route, with Dimitri playing a bit part in it and Verdant Wind, and an antagonistic part in Crimson Flower.

** Despite Silver Snow being the intended default route for the Black Eagles (and the game in general), very few fans consider it such, instead treating Crimson Flower as ''the'' Black Eagles route, while fans sympathetic to Rhea and the church usually prefer Azure Moon. To wit, Ao3 defaults the "Crimson Flower" tag to "Fire Emblem: Three Houses Black Eagles Route".

** Despite Silver Snow being the intended default route for the Black Eagles (and the game in general), very few fans consider it such, instead treating Crimson Flower as ''the'' Black Eagles route, while fans sympathetic to Rhea and the church usually prefer Azure Moon. To wit, Ao3 defaults the "Crimson Flower" tag to "Fire Emblem: Three Houses Black Eagles Route".

** Due to a line said by Ferdinand, where he refers to himself as the only [[OverlyNarrowSuperlative legitimate]] son of Duke Aegir, a number of players believe that Ferdinand has half-siblings, and calls himself the only legitimate one as a way of indicating his status or position for those who may assume other wise. As part of this, there exists a somewhat popular fan idea that Kronya is Ferdinand's half-sister, pointing to said line, Kronya's orange hair, and the implication of Duke Aegir working with TWSITD. Of course none of this is actually supported in game, but it remains a popular idea.

** Some have taken to interpreted Byleth as being autistic as some of their behavior does line up with similar behaviors among those on the spectrum.