The Old Prison served as a jail from the late 1500s to 1904, and proved particularly useful for locking up hot-tempered Knights until they cooled off. The cells here once held Jean Parisot de la Valette for a few months for beating up a lay person. His punishment included two years service in Tripoli before he later became Grand Master. Particularly fascinating is the historic graffiti etched into the walls by the inmates, including crosses, ships, hands and the cross of the Knights.
