Mahaut of Châtillon
Mahaut of Châtillon was the daughter of Guy IV of Châtillon, Count of Saint-Pol and Marie of Brittany.
Marriage
Born in 1293, Mahaut was the daughter of Guy IV of Châtillon, Count of Saint-Pol and Marie of Brittany, daughter of John II, Duke of Brittany and Beatrice of England. In 1308 she married Charles, Count of Valois, the third son of King Philip III of France and Isabella of Aragon. He was also the younger brother of King Philip IV. Charles himself had married twice before; upon the death of his second wife Catherine of Courtenay in 1308, he married Mahaut. Mahaut and Charles had four children. One of their daughters would make them ancestors of French kings, and another daughter would become Queen of Germany.Mahaut and Charles's children were:
- Marie. Married Charles, Duke of Calabria and had issue.
- Isabella. She married Peter I, Duke of Bourbon. Had issue
- Blanche. She married Charles IV, King of Germany and Bohemia. Sometimes called "Marguerite". Had issue
- Louis, Count of Chartres. Died young, no issue