Question: What is the date of death of Louis, Prince Of La Roche-Sur-Yon's wife?
Sentence (from "Louis, Prince of La Roche-sur-Yon"): He married his cousin, Louise de Bourbon, Duchess of Montpensier, eldest daughter of Gilbert of Bourbon, Count of Montpensier and Clara Gonzaga, on 21 March 1504, by whom he had three children.
Relevant evidence: Yes