Ottoman Empire was ruled by the ....................
- Giuseppe Mazzini
- King Friedrich Wilhelm IV
- Otto Von Bismarck
So the correct answer is (B): Caliph
The chief Muslim civil and religious ruler, was regarded as the successor of Muhammad . The caliph ruled in Baghdad until 1258 and then in Egypt until the Ottoman conquest of 1517 ; the title was then held by the Ottoman sultans until it was abolished in 1924.