Question: how many miles did the khanate of the golden horde stretch from east to west

title: Golden Horde
text: One of the Jochid princes who joined Hulagu 's army was accused of witchcraft and sorcery against Hulagu . After receiving permission from Berke , Hulagu executed him . After that two more Jochid princes died suspiciously . According to some Muslim sources , Hulagu refused to share his war booty with Berke in accordance with Genghis Khan 's wish . Berke was a devoted Muslim who had had a close relationship with the Abbasid Caliph Al - Musta'sim , who had been killed by Hulagu in 1258 . The Jochids believed that Hulagu 's state eliminated their presence in the Transcaucasus . Those events increased the anger of Berke and the war between the Golden Horde and the Ilkhanate soon broke out in 1262 .