Daniella Ivashkov is the Moroi mother of Adrian Ivashkov. She usually likes to be referred to as Daniella, rather than Lady Ivashkov. Rose Hathaway first met her when Adrian took her to dinner at his home to meet his family. She was formerly married to Nathan Ivashkov, and her aunt-in-law was the late Queen Tatiana Ivashkov. She was thought to have been the killer of Tatiana in Last Sacrifice before the real murderer was found.
Daniella was a Tarus before marriage and so she has political influence over both families, an issue addressed by Lissa when they are certain that she was Queen Tatiana's murderer. They wanted to quickly collect evidence due to the reason that Rufus Tarus ran for King.