Louis IX of France and James I of Aragon sign the Treaty of Corbeil, renouncing claims of feudal overlordship in one another's territories and separating the House of Barcelona from the politics of France.

Louis IX, also known as Saint Louis, was King of France from 1226 until his death in 1270. He is widely recognized as the most distinguished of the Direct Capetians, is the sole king of France to be canonised as a saint of the Catholic Church, and is also the direct ancestor of all subsequent…