These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Genius Bonus: Mircea Basarab. Mircea II was Vlad Tepes' brother. Basarab II was another Wallachian Prince from that time period. Basarab was the founder of the dinasty to which Vlad Dracula and his brothers belonged to. They are know in Romania as the Basarabi (translated in English the Basarabs). Mircea II was named after his more famous grand-father Mircea "the Old" Basarab, ruler of Wallachia from 1386-1418, one of the most effective rulers in Romanian History. The way the character acts he might actually be a mixture of both Vlad Dracula and his grand-father Mircea.
Ho Yay: Mircea and Stephen. Mircea calls him "my Stephen" and likes to touch his hand or shoulder as they talk. (This is portrayed as a difference in foreign values on personal space, but slash fans will probably squee anyway.) Stephen comes to admire him in return. Later, Mircea turns him into a vampire, and Stephen decides to follow him for life to show him that Mircea/Dracula can still be a good man too.
Moral Event Horizon: Platoon Commander Rayzhar slaughtering civilians with sadistic glee in Romania.
It is foreshadowed, though. Mircea Basarab's name. The Wallachia region of Romania is practically only known for Dracula. Mircea also reveals that he's seen the movie Dracula before and how they got everything wrong (though he leads you to believe he means just about Romania). He also impales his enemies' corpses on a stake to anger their comrades. The title is also a clue, albeit a misleading one.