The area most affected by this expansion was southern France where the Cathar heresy had been strongest. Beggars were fed from his table, he ate their leavings, washed their feet, ministered to the wants of the lepers, and daily fed over one hundred poor. Louis purchased these in 1239–41 from Emperor Baldwin II of the Latin Empire of Constantinople, for the exorbitant sum of 135,000 livres (the construction of the chapel, for comparison, cost only 60,000 livres).Louis IX took very seriously his mission as "lieutenant of God on Earth", with which he had been invested when he was crowned in Rheims. Thus, in order to fulfill his duty, he conducted two crusades, and even though they were unsuccessful, they contributed to his prestige. Born at Poissy, near Paris, he was a member of the House of Capet and the son of King Louis VIII and Blanche of Castile. Eventually, in 1309, Pope Clement V even left Rome and relocated to the French city of Avignon, beginning the era known as the Avignon Papacy (or, more disparagingly, the "Babylonian captivity").Isabelle (March 2, 1241 – January 28, 1271), married Theobald V of ChampagneJean Tristan (1250 – August 3, 1270), married Yolande of BurgundyPierre (1251–84), Count of Perche and Alençon; Count of Blois and Chartres in right of his wife, Joanne of ChâtillonBlanche (1253–1323), married Ferdinand de la Cerda, Infante of CastilleMarguerite (1254–71), married John I, Duke of BrabantRobert, Count of Clermont (1256 – February 7, 1317). "king of the Franks," and the kings of France were also known by the title "most Christian king" (Rex Christianissimus). In a letter to his son Philip, Louis exhorted him to always remember that God should hold primacy of place in his life and warned him to stay free from the stain of mortal sin. He established the Parlement of Paris.Louis was eleven years old when his father died on November 8, 1226. Upon his departure from Middle East Louis left a significant garrison in the city of Acre for its defense against Islamic attacks. God the Son, Redeemer of the world, Have mercy on us.
"king of the Franks," and the kings of France were also known by the title "most Christian king" (Rex Christianissimus). On May 27, 1234 Louis married Marguerite de Provence (1221 – December 21, 1295), the sister of Eleanor, the wife of Henry III of England.Louis was the elder brother of Charles I of Sicily (1227–85), whom he created count of Anjou, thus founding the second Angevin dynasty.
God the Holy Ghost, Have mercy on us. But the march from Damietta towards Cairo through the Nile River Delta went slowly. The king of France was regarded as a primus inter pares among the kings and rulers of the continent.
Upon his departure from the Middle East, Louis left a significant garrison in the city of Acre for its defense against Islamic attacks. Contacts started in 1248, with Mongolian envoys bearing a letter from Eljigidei, the Mongol ruler of Armenia and Persia, offering a military alliance: when Louis disembarked in Cyprus in preparation of his first Crusade, he was met in Nicosia with two Nestorians from Mossul named David and Marc, who were envoys of the Mongol ruler Eljigidei. The rate of these confiscations reached its highest levels in the years before his first crusade, and slowed upon his return to France in 1254. He was crowned king the same year in the cathedral at Reims.Because of Louis's youth, his mother, Blanche of Castile, ruled France as regent during his minority.