Question: Who is the maternal grandfather of Anastasia (Sister Of Constantine I)?
Sentence (from "Flavia Maximiana Theodora"): She is often referred to as a stepdaughter of Emperor Maximian by ancient sources, leading to claims by historians Otto Seeck and Ernest Stein that she was born from an earlier marriage between Eutropia, wife of Maximian, and Afranius Hannibalianus.
Relevant evidence: Yes