Selim I (Ottoman Turkish: سليم اوّل, Modern Turkish: I.Selim or Yavuz Sultan Selim), nicknamed Yavuz (traditionally translated as "grim," but closer to "stern" or "implacable" in meaning) (October 10, 1465/1466/1470 – September 22, 1520), was the Sultan of the Ottoman Empire from 1512 to 1520. His reign is notable for the enormous expansion of the Empire, particularly his conquest between 1516 and 1517 of the entire Mamluk Sultanate of Egypt, which included all of Sham, Hejaz, Tihamah, and Egypt itself. He was also granted the title of "Khâdim ül Haramain ish Sharifain" (Servant of the Holy Cities of Mecca and Medina) by the Sharif of Mecca in 1517. Through conquering and unification of Muslim lands, Selim became the defender of the Holy Cities of Mecca and Medina which strengthened the Ottoman claim to caliphate in the Muslim world.