In Women of Power, I wanted real mythological figures for Stella's parents, but I didn't want them to be major mythological figures that everyone knows. Her father is the demigod Hipparion, who is mentioned once or twice in the mythology texts but has no surviving stories about him. His name means "pony" in greek, so he must have had something to do with the being a lord of horses or something.
I had fun playing with the idea that nobody on Earth remembers him, even though he thinks he is a major figure in history. Like most mythological fathers, Hipparion has only a passing interest in his offspring, and expects to be called on for magical armor or weapons, but not emotional support.