Louis IX (25 April 1214 – 25 August 1270), commonly Saint Louis, was King of France from 1226 until his death. He was also styled Louis II, Count of Artois from 1226 to 1237. Born at Poissy, near Paris, he was an eighth-generation descendant of Hugh Capet, and thus a member of the House of Capet, and the son of Louis VIII and Blanche of Castile. He worked with the Parliament of Paris in order to improve the professionalism of his legal administration.