How did St Louis ix reign in France?

Saint Louis IX reigned as King of France from 1226 to 1270 and is known for his piety, justice, and strong governance. He was a key figure in promoting legal reforms, establishing a more centralized and efficient administration, and enhancing the role of the monarchy in France. Louis IX also led two Crusades, reflecting his deep religious commitment, although they ultimately failed. His legacy includes the establishment of the French monarchy as a significant power in Europe and his canonization as a saint in 1297.