Didier de St. Jaille, of the Langue of France was Prior of Toulouse, and one of the strenuous defenders of Rhodes, was elected Grand Master of the Order on the 22nd November 1535 during his absence from the island. While at Montpelier on his way to Malta he was suddenly taken ill and died on the 26th September 1536, and was buried there in the Priory of St. Giles.