Мехмед IV
İslâm III Giray, (reigned 1644–54, lived 1604–1654)(Crimean Tatar: III İslâm Geray, ۳اسلام كراى) was khan of the Crimean Khanate for ten years, interrupting the reign of his brother Mehmed IV Giray. He was khan during the Khmelnytsky uprising of the Cossacks against Poland.