A Mage Born of Muggles is someone who is born with powers despite their muggle parentage in a setting where Magic and Powers are passed on genetically or are the birthright of a Witch Species. Of course, they will still need training in how to use their power, and so they will quickly meet someone from the Magical Society, who will take them as The Apprentice, lead them to Wizarding School, or otherwise ensure that they're introduced to their new life.
This is a common trait in a protagonist for several reasons. It means that they begin as a Fish out of Water, which can be kept up and milked for comedy or drama for as long as it remains entertaining. It means that, as the viewpoint character, they can be slowly introduced into the customs of the Magical Society. It means that they can be the target of any Fantastic Racism that exists between mages and muggles. And since their initial values and sympathies are likely to be different from someone raised in magical society, they're almost certain to be a disruptive influence on it - especially if, as often happens, they're also far more talented than most people from magical bloodlines.
If they're not The Protagonist, the character may instead serve as The Watson, likewise allowing the audience a chance to learn about the magical world. In this case, they may or may not be shown in contrast to a protagonist who's more of an insider.
In a world where Randomly Gifted individuals are the norm, being muggle-born is unremarkable, and therefore doesn't fit this trope unless there are exceptional circumstances (such as Fantastic Racism against muggle-borns, even if that makes no sense). It's only this trope if a character's birth outside of magical society is abnormal, or seen as abnormal, compared to how magic usually manifests.
An inversion of Muggle Born of Mages. Sister Trope to Randomly Gifted; here, the point is that the gift is usually predictable, but sometimes, life throws you a curveball. May result from Recessive Super Genes. Compare Muggle Foster Parents.
- Little Witch Academia: Akko comes from a non-magical family, which contributes to her ineptitude in magic so much that she can't even fly a broom properly.
- Lyrical Nanoha turns this Up to Eleven by having two of its strongest mages (in a civilization spanning dozens if not hundreds of worlds) not only be born of muggles, but be born on a planet that as far as we know is composed entirely of muggles barring those two and a third of unspecified strength.
- My Hero Academia: When quirks first came into being. Discovered when a baby in Qing Qing was born glowing, the new generation began developing powers to the point up to where a Muggle Born of Mages was a rarity during the event of the manga and anime.
- Tweeny Witches: Arusu is a witch born from human parents, which makes her stand out in a world where magic is passed down among the witches and warlocks.
- Ascendance of a Bookworm: It happens from time to time for children in the Commoner and Merchant classes, but the Nobility strictly control the training and tools necessary for their exclusive use. This means that for most lower-born potential mages, their power builds up and they die of "the Devouring" before the age of seven. The only hope for young girls is to essentially sell themselves to a noble to bear their children when they grow up(as magic power usually is inherited from the mother), in exchange for old Magic Tools that can draw off their mana buildup. Myne manages to avoid this fate by joining the Church, which was suffering from a man(a)power shortage she could fill with her Isekai Protagonist-levels of Mana, while using her inventions to support herself and donate to the Church.
- Played for Drama in My Next Life as a Villainess: All Routes Lead to Doom!. Maria is a powerful light magic-user even though she comes from an ordinary family. Since the ability to use magic is normally only found among the upper class, it ends up destroying her parents' marriage due to rumors that her mother must have slept with some random noble. note
- In The Black Magician Trilogy, Sonea is a frighteningly-powerful natural (someone whose magic emerges without training) from the slums of Kyralia, while nearly all magicians are born to the nobility and trained from an early age in their talent.
- In Harry Potter, these are called Muggle-bornsnote , or more derisively, "mudbloods," and their existence is a driving factor in the Big Bad's A Nazi by Any Other Name ideology.
- Harry's best friend Hermione Granger is the most prominent one, and the Fantastic Racism she experiences drives her to become a champion for the rights of magical minorities. The fact that she is the most talented magic-user in her generation is frequently cited as an evidence of the complete BS regarding the view held by many people (not just pure-blood supremacists) that Muggle-borns are weaker. One could say she is the Trope Codifier.
- Harry himself is a borderline case; both of his parents were full-fledged magic-users, but since he was orphaned as an infant and his foster parents were full of hardcore anti-magic sentiment, Harry never knew of his heritage or about the wizarding world in general until Hagrid was sent to tell him "Yer a wizard".
- Harry's late mother, Lily Potter (nee Evans) was born to an otherwise Muggle family. Like Hermione, she was an extremely talented witch in spite of this. Lily's sister and Harry's aunt Petunia, who is a Muggle, resented Lily's aptitude for magic, which led to her and Vernon Dursley's attempted (and unsuccessful) suppression of Harry's magical potential and their abuse of Harry.
- Several Hogwarts classmates are Muggle-borns, such as Justin Finch-Fletchley of Hufflepuff, who relates that he was "down for Eton" until he received his notice from Hogwarts instead.
- Multiple examples are also encountered throughout the series where a "half-blood" witch or wizard is descended from both a Muggle and a magical parent. Voldemort himself is one, born of the unwilling union of a witch and the Muggle man she drugged with Love Potions to force him to fall in love with her. Snape is one of these as well, his mother was a witch and his father a Muggle.
- In Schooled in Magic, Emily is an Earthling Trapped in Another World, and both of her parents were ordinary Earthlings (though since Earth has no magic, it's possible that they had magical potential that they never got to exercise). She avoids Fantastic classism because everyone thinks that she's the daughter of Void, the Lone Power, but Book 5 shows just how badly the more conservative magicians can treat magicians without proper ancestry: At Mountaintop, they're deliberately mistaught, used as slaves and crapped on by the upper-class students, then expelled and used as batteries for Mountaintop's defenses.
- In the Young Wizards series this happens 100% of the time (at least for human wizards) despite wizardry being genetically determined. The genetics only grant the capacity to do magic, while the godlike Powers That Be decide who among the capable are granted the gift. The Powers That Be do this as a favor to human wizards, in return for all their efforts in the fight against evil, since being a wizard and fighting evil is dangerous. It's a load off the mind of wizard parents to know that their children will only be facing ordinary dangers.
- Both Garou and Kithain from the Old World of Darkness interbreed with humans (indeed such is required of the Garou, for whom breeding with each other is taboo and any resulting offspring of such pairings are infertile). Some children born as a result of this interbreeding are Garou or Kithain themselves but most are Kin or Kinain respectively, fully human but with the blood of their werewolf or faerie parent. Their children will likely be the same, even if the other parent was a normal human, but any child of a Kin or Kinain has a chance to be born Garou or Kithain. This can occur many generations down the line, sometimes long past the point that the family has forgotten their supernatural ancestor. This leads to some very confusing situations. For extra fun, there's been enough contact between the werewolves and the fae that some bloodlines are both Kin and Kinain and while no-one can be both a Garou and a Kithain you could end up with both in the same family.
- In Warhammer, mutated children of normal humans are often abandoned by their parents. If they survive, they roam the wilds until they're found by groups of beastmen or other Chaos mutants who they can join up with.
- Dungeons & Dragons:
- Sorcerers frequently have this trope as their backstory, since they are premised on innate magical talent, as opposed to Wizardsnote and Warlocksnote . Still, one of the possible mechanics for a Sorcerer's power is having a hidden ancestral bloodline, often draconic in origin, which has resurfaced in the character and manifested as magical capabilities. (Oddly, in most campaign settings, it's rare for sorcerers to form explicit family lines.)
- The background fluff for Warlocks also indicates that sometimes they're simply born out of nowhere or are descended from fiends, often unknowingly — although this is edition-dependent and Depending on the Writer.
- Azure Striker Gunvolt 2: The boss Tenjian's backstory is that he was an Adept born from 2 completely normal parents. They ended up putting him in an orphanage because they don't know how to deal with him and the stigma towards Adepts.
- Deconstructed in the Dragon Age games. The status of muggle-born mages depends largely on the player's background. City elves and human peasants make out the best since they get to leave a life of inescapable poverty to join the Circle of Magi. Human nobles outside the Tevinter Imperium also join the Circle but lose all claims of nobility in the process. Tevinters are a special case. Their nobility is composed entirely of mages, and marriages are arranged in such a way to ensure mage offspring. Commoners hold out hope that one day their children or grandchildren might become mages, but even if they do, they'd be stuck working as lowly bureaucratic clerks since all the lofty positions are held by the noble families. Then there's the Qunari, whose mages become slaves to the state.
- Magical Diary has Mary Sue, the protagonist, as a "Wild Seed." No particular Fantastic Racism is shown, but several routes show differences in how Wild Seeds and mage-born have to come to grips with their powers and with magical society.
- In the Nasuverse, mages come from families passing their particular form of magic down a Single Line of Descent. Every family started with a muggle that decided to practice magic, though it takes generations of research to make much of it.
- Avatar: The Last Airbender: Katara is a unique example. Shes from the Water Tribe, and her being a waterbender born to two non-benders (Hakoda and Kya) isnt unique because being Randomly Gifted with Elemental Powers in the World of Avatar is very common. However, shes a member of the Southern Water Tribe, which has been targeted by Fire Nation raids in order to kill and/or capture every single waterbender that was produced there during the Hundred Year War. Katara is the only one left by the time the series begins, and the 14-year-old hardly has any waterbending experience because there have never been any other waterbenders around to teach her. A major subplot of the first season is Katara finding a Waterbending master from the Northern Water Tribe (which has mostly remained intact thanks to its isolation from the rest of the world) to teach her.