User blog comment:SayuriDarling/The House of Hades Official Discussion/@comment-3146855-20131010001758/@comment-1411267-20131010085235

@son-of-a-muse

Dumbledore being gay, was something the author talked about in an interview. It was never mentioned in the books, not even hinted at TBH. Anyone who did not follow the authors interviews, read articles on the character, will not know Dumbledore is gay. So technically Nico IS the first character because him being gay was directly mentioned in the book