King Louis IX of France, also known as Saint Louis, was born in 1214 and ruled from 1226 until his death in 1270. He is remembered for his strong sense of justice, commitment to the church, and efforts to improve the lives of his subjects. Louis IX led two Crusades, aiming to reclaim the Holy Land, and was known for his piety and dedication to the Christian faith. In 1297, Louis IX was canonized by the Catholic Church, becoming a saint due to his virtuous life and charitable works. His legacy includes the establishment of the Saint Louis Cathedral in Paris and the promotion of legal reforms that influenced the French legal system.