Question: What is the date of death of François De Vendôme, Duc De Beaufort's mother?
Sentence (from "Françoise de Lorraine, Duchess of Vendôme"): Sometimes known as "Françoise de Mercœur", she belonged to the Mercœur cadet branch of the sovereign Dukes of Lorraine and was a niece of Louise of Lorraine, wife of the previous King Henry III.
Relevant evidence: No