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Mehmed VI Vahideddin ( "Meḥmed-i sâdis", "Vahideddin", or ), who is also known as "Şahbaba" (meaning "Emperor-father") among his relatives, (14 January 1861 – 16 May 1926) was the 36th and last Sultan of the Ottoman Empire, reigning from 1918 to 1922. The brother of Mehmed V, he became heir to the throne after the 1916 suicide of Abdülaziz's son Şehzade Yusuf Izzeddin as the eldest male member of the House of Osman. He acceded to the throne after the death of Mehmed V. He was girded with the Sword of Osman on 4 July 1918, as the thirty-sixth "padishah". His father was Sultan Abdulmejid I and mother was Gülüstü Hanım (1830 – 1865), an ethnic Abkhazian, daughter of Prince Tahir Bey Çaçba and his wife Afişe Lakerba, originally named Fatma Çaçba. Mehmed was removed from the throne when the Ottoman sultanate was abolished in 1922.
Mehmed VI Vahideddin