Mehmed III Giray (1584-1629) was Khan of Crimea from 1623 to 1628, interrupting Canibek Giray's terms. The grandson of Mehmed II Giray, he spent much of his life in exile due to dynastic struggles and was ultimately enthroned by the Turks in 1623 due to Canibek's poor command skills. Mehmed battled Khan Temir and the Budjak Horde, faced a devastating Cossack raid into Crimea, took so many captives in Poland that prices on the slave market collapsed, resisted aristocratic efforts to depose him due to his strong rule, and was ultimately overthrown in 1628 after the Turks backed the weaker Canibek against the strong and independent-minded Mehmed. Mehmed was once again forced into exile after losing Crimea, and he received secret Polish support for his attempt to retake the throne; in exchange, he promised an end to Tatar raids on Poland. His two campaigns into Crimea failed, and he was murdered by mutinying Cossacks.