On 23 March 1530, Charles V, Holy Roman Emperor, gave the islands to the Knights Hospitaller under the leadership of Frenchman Philippe Villiers de L'Isle-Adam, Grand Master of the Order, in perpetual lease for which they had to pay an annual tribute of one single Maltese Falcon. These knights, a military religious order also known as the Order of St John and later as the Knights of Malta, had been driven out of Rhodes by the Ottoman Empire in 1522.