Charles said that their mother had a strong impact on her children's education. In reality, Blanche was fully engaged in state administration, and could likely spare little time for her youngest children. Charles lived at the court of a brother, Robert I, Count of Artois, from 1237. About four years later he was put into the care of his youngest brother, Alphonse, Count of Poitiers. His participation in his brothers' military campaign against Hugh X of Lusignan, Count of La Marche, in 1242 showed that he was no longer destined for a Church career.