Berke

Berke Khan was a grandson of Genghis Khan and a Mongolian military commander and ruler of the Golden Horde who effectively consolidated the power of the Blue Horde and White Horde from 1257 to 1266. He succeeded his brother Batu Khan of the Blue Horde (West), and was responsible for the first official establishment of Islam in a khanate of the Mongol Empire. Following the Sack of Baghdad by Hulagu Khan, his cousin and head of the Mongol Ilkhanate based in Persia, he allied with the Egyptian Mamluks against Hulagu. Berke also supported Ariq Böke against Kublai in the Toluid Civil War, but did not intervene militarily in the war because he was occupied in his own war against Hulagu and the Ilkhanate.