Question: What is the date of birth of Marie De Bourbon, Duchess Of Montpensier's mother?
Sentence (from "Charles, Prince of La Roche-sur-Yon"): He served with his elder brother Louis, Duke of Montpensier, in the wars against Emperor Charles V, in Provence( 1536), Artois( 1537), in Roussillon( 1542) and Champagne( 1544).
Relevant evidence: No