Charles I of Naples
Louis's younger brother, Charles I of Naples, preserved his heart and intestines, and conveyed them for burial in the cathedral of Monreale near Palermo. Louis's bones were carried overland in a lengthy processional across Sicily, Italy, the Alps, and France, until they were interred in the royal necropolis at Saint-Denis in May 1271. Charles and Philip II later dispersed a number of relics to promote his veneration.