This monarch also succeeded in capturing Damietta, but he died in Tunis while attempting to attack Mamluk Egypt during the Eighth Crusade.
Jean de Joinville, who wrote a history of him, testified on his behalf before Pope Boniface VIII. This leader sent William of Rubruck to meet with the Mongols, signed an agreement with Raymond VII of Toulouse to stop attacking heretics in Languedoc, lost the Battle of Fariksur, patronized the Morgan Bible, and defeated Henry III at Taillebourg. This monarch also succeeded in capturing Damietta, but he died in Tunis while attempting to attack Mamluk Egypt during the Eighth Crusade. FTP, identify this 13th-century French king, the only one to be canonized.
Jean de Joinville, who wrote a history of him, testified on his behalf before Pope Boniface VIII.
{Louis IX} (prompt on {St. Louis} or {just Louis})