Later, this ruler defeated a force loyal to Henry III at
 the Battle of Taillebourg.
This ruler founded a hospital meant to hold 300 called the Fifteen Score and traded territory with Spain
 in the Treaty of Corbeil. Blanche of Castille served as regent in the early reign of this ruler, marked by a
 victory over Raymond VII at the Battle of Languedoc. Later, this ruler defeated a force loyal to Henry III at
 the Battle of Taillebourg. He died of a stomach illness after allying with his brother Charles of Anjou in an
 attack on Tunis, and was earlier captured at the Battle of Fariskur by the Ayyubid dynasty of Egypt. For 10
 points, name this French king who went on the Seventh and Eighth Crusades, the only French king to be
 canonized.
This ruler founded a hospital meant to hold 300 called the Fifteen Score and traded territory with Spain
 in the Treaty of Corbeil.
{Louis IX} [or {Saint Louis}; prompt on "{Louis}"]