Treaty of Paris (1229)

Louis was still a minor, and it was his mother Blanche of Castile, as regent, who was instrumental in forging the treaty.

[1] The agreement officially ended the Albigensian Crusade, and according to the terms of the treaty, Raymond's daughter Joan was to be married to Louis' brother Alphonse.

[2] Moreover, Raymond ceded the eastern provinces of his lands to Louis and the Marquisat de Provence to the Catholic Church.

[3] The treaty also gave the Inquisition absolute power regarding searching for, and seizing of, heretics.

[5] The Cathars were left without political and military protection, as Raymond and his subordinates, now vassals of the French crown, were ordered to hunt them down.