 During the campaign he contracted leprosy and returned home.After living withdrawn in his castle in La Ferté-Villeneuil for a few years he died in 1218, leaving his possessions to his aunts Margaret and Isabelle.The northern part of Blois was erected into the County of Chartres for Isabelle; Margaret received the remainder of the County of Blois, and he sold Clermont to the crown before he died.