Guillaume Caoursin

Guillaume Caoursin, also called Gulielmus Caoursin (1430, Douai – 1501, Rhodes), was vice-chancellor of the Order of Saint John of Jerusalem, or Knights Hospitaller. He was an eye-witness to the siege of Rhodes in 1480, an unsuccessful attack on the Hospitaller garrison led by Pierre d'Aubusson by an Ottoman fleet of 160 ships and an army of 70,000 men under the command of admiral Mesih Pasha.