m. 23 May 1200
Facts and Events
Isabelle of France (March 1225 – 23 February 1270) was the daughter of Louis VIII of France and Blanche of Castile. She was a younger sister of King Louis IX of France (Saint Louis) and of Alfonso, Count of Poitiers, and an older sister of King Charles I of Sicily. In 1256 she founded the Poor Clare Monastery of Longchamp in the part of the Forest of Rouvray now called the Bois de Boulogne, west of Paris. She is honored as a saint by the Franciscan Order.