Jochi died in 1226, during his father's lifetime. Some scholars, notably Ratchnevsky, have commented on the possibility that Jochi was secretly poisoned by an order from Genghis Khan. Rashid al-Din reports that the great Khan sent for his sons in the spring of 1223, and while his brothers heeded the order, Jochi remained in Khorasan. Juzjani suggests that the disagreement arose from a quarrel between Jochi and his brothers in the siege of Urgench. Jochi had attempted to protect Urgench from destruction, as it belonged to territory allocated to him as a fief. He concludes his story with the clearly apocryphal statement by Jochi: "Genghis Khan is mad to have massacred so many people and laid waste so many lands. I would be doing a service if I killed my father when he is hunting, made an alliance with Sultan Muhammad, brought this land to life and gave assistance and support to the Muslims." Juzjani claims that it was in response to hearing of these plans that Genghis Khan ordered his son secretly poisoned; however, as Sultan Muhammad was already dead in 1223, the accuracy of this story is questionable.
Jochi's death occurred in what year? Where did Jochi remain after Genghis Khan sent for his sons in the spring of 1223? Which territory did Jochi try to protect that may have led to a dispute with his brothers? Who did Jochi reportedly enlist to help him stop his father's massacres?  Why is Jochi's reported alliance with the Muslims historically suspect?