Joan, Countess of Blois

Joan of Châtillon (Jeanne de Blois; 1253?

She was the daughter of John I, Count of Blois and Alix of Brittany, Dame de Pontarcy.

Joan received the County of Chartres from her father during his life; she later sold these lands to Philip IV of France in 1286.

She ceded the lordship of Avesnes to her cousin Hugh before her death.

In 1263, Joanne married Peter of Alençon,[1] a son of King Louis IX of France and Margaret of Provence.