The Battle of El Tor was a military engagement that took place in 1541, between Portuguese forces under the command of the Governor of India Dom Estevão da Gama and those of the Ottoman Empire then in the city of El Tor, on the Sinai Peninsula. The Turks were driven from the city, but at the request of Christian monks from the Monastery of Saint Catherine the Portuguese spared the city from being plundered, and celebrated a mass and a knighting ceremony therein.