Territorial evolution of the Ottoman Empire
Suleiman I ( "Süleymān", ; almost always "Kanuni Sultan Süleyman") (6 November 1494  – 5/6/7 September 1566), was the tenth and longest-reigning Sultan of the Ottoman Empire, from 1520 to his death in 1566. Suleiman became a prominent monarch of 16th century Europe. Suleiman personally led Ottoman armies to conquer the Christian strongholds of Belgrade, Rhodes, and most of Hungary. In 1541 he annexed central Hungary while Transylvania became an Ottoman vassal. However rest of the Kingdom of Hungary including western and northern (Upper) Hungary and Croatia still were Habsburgs possessions. Suleiman also conquered Iraq in his conflict with the Safavid dynasty. Under his rule, the Ottoman fleet dominated the seas from the Mediterranean to the Red Sea and the Persian Gulf.
Dündar Ali Osman
Dündar Ali Osman (, ; born 30 December 1930), also known as Dündar Ali Osman Osmanoğlu, Dündar Ali Osmanoğlu, or Dündar Aliosman, is the 45th Head of the fallen House of Osman, which ruled the Ottoman Empire from 1299 to 1922. It existed until shortly after the end of World War I. Historians commonly mark the end date at the abolition of the sultanate in 1922, the proclamation of the Republic of Turkey in 1923, or the abolition of the caliphate in 1924. If the Ottoman Empire had still been present in modern-day political geography, he would be titled as Sultan Ali II.