A Complete Gaunt Family Tree in Harry Potter. Although Voldemort grew up in an orphanage, the Dark Lord of Harry Potter was ...

The name of Voldemort’s mother was revealed in Harry Potter and the Half-Blood Prince. According to the storyline, Tom Marvolo Riddle’s family name is Gaunt, not Riddle.

Harry Potter and Sirius Black in front of the tapestry in "Harry Potter and the Order of the Phoenix." Warner Bros. "It says 'there is a family tree,'" Mina said.