Mehmed I Giray

He appointed as Kalga his younger brother Akhmed the Lame. Akhmed was given Ochakov and raided Lithuania but soon revolted. He intrigued with Moscow and sent his eldest son Gemmet to Istanbul to request military aid against Mehmed. In the spring of 1519 Mehmed sent his sons Alp and Bakhadyr against Akhmed, who was killed in the steppe beyond Perekop. Bakhadyr became Kalga. Alp became Kalga in 1523 when Bakhadyr became khan of Astrakhan. (Howorth (1880), following Nikolay Karamzin (1818) speaks of intrigues and bribes involving Akhmed, Mehmed, Vasili III of Russia and Sigismund the Old of Poland.

A major problem of his reign was gaining control of the Nogai nomads to the north who had become fragmented after the fall of the Golden Horde in 1502. In 1519 a Kazakh invasion drove many Nogais west of the Volga. They asked asylum in the Khan's territory. Two years later the Kazakh Khan died and the Nogais pushed back east, but their oath was not forgotten and the Crimean khan could claim sovereignty as far east as the Emba. Crimea continued to raid Lithuania and Russia.

In 1519 the Russians placed their protégé Shah Ali on the throne of Kazan. The local mirzas asked Mehmed to send one of his family to replace Shah Ali. In the spring of 1521 Mehmed's brother Sahib I Giray arrived at Kazan and easily expelled Shah Ali with local help. The two brother Khans then launched an attack on Muscovy. Sahib Giray went west and captured and burned Nizhny Novgorod and Vladimir. At the same time 100,000 Crimeans, Nogais and Lithuanians moved north and crossed the Oka River in July. The two forces joined near Kolomna and moved on Moscow. Vasili III of Russia fled his capital for Volokolamsk to gather troops. They looted the area around Moscow from 1 to 12 August. On the approach of Vasili's army they drew back and looted the regions of Kolomna, Bobrovsk, Kashira and Ryazan. An attempt to besiege Ryazan failed. Mehmed returned to the steppe with a huge number of captives.

At the end of 1522 Mehmed decided to capture Astrakhan. The Nogai Mirzas Agish and Mamai joined him. In the spring of 1523 he arrived with a large army. The town was taken without fighting and Khan Hussein fled. Mehmed appointed his eldest son Kalga Bakhadyr as Khan of Astrakhan and unwisely disbanded most of his army. Agish and Mamai grew fearful of Mehmet's increasing power. They lured him out of town and killed Mehmet and Bakhadyr along with their guards. The remaining Crimean troops were defeated or scattered across the steppe.

Mehmet's sons Gazi and Baba reached Crimea along with fifty Mirzas. They were followed by a Nogai army which ravaged much of Crimea but could not take the towns. Mehmed's son Ğazı I Giray (1523–24) became khan. For the next nine years the throne was contested between Mehmed's sons Gazi and Islam and his brothers Saadet and Sahib until his youngest brother Sahib I Giray (1532–1551) achieved a long reign.