Charles III of Valois (1270 - 1325) was the third son of Philip III of France and Isabella, daughter of James I. He was the father of Phillip VI, and uncle to three kings ( Louis X, Phillip V, and Charles IV). In 1285 he gained the title of Count of Valois, and Count of Anjou and Maine in 1290. During his life, he unsuccessfully sought the rule of four other kingdoms: Aragon, Sicily, Constantinople and the Holy Roman Empire.

He was married:

1. In 1290 to Marguerite of Anjou and Maine (1274 - 1299), daughter of King Charles II of Naples
2. In 1302 to Catherine I of Courtenay (1274 - 1308), titular Empress of Constantinople
3. In 1308 to Mahaut of Chatillon (1293 - 1358)