Yzla King

Yzla and her brother Zevon were both miracles, created when their mother Yzma made a deal with Hades. She would give him an offering, and he would let her bear children.
He never stated whose children they were.
When Zevon and Yzla were born, and she found out they were also Hades' children, she was furious. She constantly pushed them to be the best out there, and when they failed, she would punish them severely. Yzla and Zevon grew distant, both from their mother and each other.