Question: What is the date of death of Isabel Neville, Duchess Of Clarence's father?
Sentence (from "Richard Neville, 16th Earl of Warwick"): One of the leaders in the Wars of the Roses, originally on the Yorkist side but later switching to the Lancastrian side, he was instrumental in the deposition of two kings, which led to his epithet of "Kingmaker".
Relevant evidence: No