Charles of Valois (March 12, 1270-December 16, 1325) was the third son of Philip III of France and Isabella of Aragon. His mother was a daughter of James I of Aragon and Yolande of Hungary. He was a member of the House of Capet and founded the House of Valois. In 1284, he was created Count of Valois (as Charles I) by his father and, in 1297, he was created Count of Anjou (as Charles III) by his brother Philip IV. Wikipedia
The definitive Wikipedia entry for Charles Of Valois. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Charles_of_Valois