Ibrahim "Abe" Mazur is Rose Hathaway's father. He is a very powerful and wealthy Moroi. In Blood Promise, Rose meets him in Russia, and he attempts to convince her to return back to St. Vladimir's. Rose doesn't find out he's her father until the end of the book. In Spirit Bound, during Rose's trial, Abe was seen by Rose and Janine Hathaway having a 'talk' with Adrian Ivashkov and was rumoured that he started the bet about whether Rose would show up at the trials or not. He also became Rose's lawyer when she was accused of treason.