Suleiman the Magnificent
Suleiman I ( '; or '; 6 November 1494 – 6 September 1566), commonly known as Suleiman the Magnificent in the West and Kanunî Sultan Süleyman (; "The Lawgiver Suleiman") in his realm, was the tenth and longest-reigning Sultan of the Ottoman Empire from 1520 until his death in 1566. Under his administration, the Ottoman state ruled over 15 to 25 million people.
Islamic state
The Ottoman Sultan, Selim I (1512–1520) reclaimed the title of caliph, which had been in dispute and asserted by a diversity of rulers and "shadow caliphs" in the centuries of the Abbasid-Mamluk Caliphate since the Mongols' sacking of Baghdad and the killing of the last Abbasid Caliph in Baghdad, Iraq 1258.