In 1310 Mary married Louis I, Duke of Bourbon, son of Robert, Count of Clermont and Beatrix of Bourbon. They had eight children,
Peter I, Duke of Bourbon (1311–1356), killed at the Battle of Poitiers
Jeanne (1312–1402), married in 1324 Guigues VII, Count of Forez
Marguerite (1313–1362), married on July 6, 1320 Jean II de Sully, married in 1346 Hutin de Vermeilles
Marie of Bourbon (1315–1387, Naples), married first in Nicosia in January 1330 Guy of Lusignan (d 1343), titular Prince of Galilee, married second on September 9, 1347 Robert of Taranto, the titular Latin Emperor. Philip (1316 – aft 1327)
James I, Count of Louisiana Marche (1319 – 1362), killed at the Battle of Brignais, from whom the later royal Bourbons descend.