Sahib I Giray (1501-1551) was Khan of the Kazan Khanate from 1521 to 1524 (succeeding Shah-Ali and preceding Safa Giray) and Khan of Crimea from 1532 to 1551 (succeeding Islam I Giray and preceding Devlet I Giray). A son of Menli I Giray, he was chosen as khan of Kazan (by virtue of his Genghisid descent) by the court's anti-Russian faction in opposition to the Russian vassal shah-Ali. Sahib entered Kazan, and he battled Muscovite invaders until the Russians invaded Kazan in 1524. Sahib was forced to flee, and he was imprisoned by Saadet I Giray in 1524. He later aided Saadet against Islam I Giray, and the Ottomans deposed Islam in Sahib's favor in 1532. He founded the new capital of Bakhchysarai, and he joined forces with Suleiman the Magnificent to invade Moldavia in 1539, led a punitive invasion of Circassia in 1539, raided Lithuania and Muscovy during the 1540s, and captured Astrakhan in 1545. In 1546, he defeated an invasion of 10,000 Nogais and had many of the prisoners executed. In 1551, Sahib disobeyed Ottoman orders to invade Persia and was promptly murdered and deposed by his nephew Devlet.