Porcher's image represents an artifact from the Siege of Rhodes (1522), when the Ottomans under Sultan Suleyman I expelled the Order of St. John from the Island of Rhodes (now Greece). Sir Ernest Barker describes the events: "Early in the morning of New Year's Day, 1523, the trumpet of the Knights sounded for the last time in Rhodes; their fleet of thirty-one ships, with the refugees on board, put out to sea." (Baker 51). Fifty vessels and approximately 5000 Rhodians departed the island, which was of strategic importance to the Turks, lying between Constantinople and Alexandria. In 1530, Charles V of Spain gave the Knights of St John control of the Maltese islands, but they became vassals of the King and pledged oath to the King of Sicily (Atauz 82).