Facts and Events
Joan received the County of Chartres from her father during his life; she later sold these lands to Philip IV of France in 1291. She ceded the lordship of Avesnes to her cousin Hugh before her death. When she died in 1291 the other titles were left to him also.
Joan died in 1291, with no living issue. She left the title of Count of Blois and her remaining titles to her cousin Hugh.