In 18th century Europe, it was in fashion to smoke Turkish tobacco in a Turkish pipe, wearing a Turkish robe, all while in an elaborate Turkish costume. European opera was influenced heavily by the idea of turquerie. Mehmed the Conqueror (1432–1481), one of the most prominent sultans of the Ottoman Empire, had many operas written about him. His conquest of Constantinople in 1453 was the basis of the German opera "Mahumeth II", composed by Reinhard Keiser in 1693. In 1820, Gioachino Rossini composed "Maometto II", which is set during the Siege of Negroponte (1470) by the forces of the Ottoman Empire, led by Sultan Mehmed II.