He was born to
Hulagu and his Oirat wife Guyuk Khatun in 1234. He was descended from
Genghis Khan on both sides: Hulagu was his grandson through
Tolui, and Guyuk was his granddaughter through
Checheikhen. His maternal grandfather was Toralchi Güregen, one of the sons of
Qutuqa Beki. He was left behind in Mongolia with
Möngke when Hulagu left for Iran in 1253. Entrusted with his father's other wives'
ordu, he settled near
Almaliq. However he soon found himself in a succession crisis between his uncles
Kublai and
Ariq Böke in 1259 and had to support the latter. Not much after Ariq's move against
Alghu in 1263 and his surrender in the later year he deserted and left for Iran with a host of other relatives of Hulagu - his wife Qutui Khatun, his brothers Taraghai, Tekshin,
Teküder and others. Hearing the news, Hulagu sent one of his commanders, Abatai Noyan, to accompany them. However, Jumghur fell ill and died in
Samarqand en route. His family reached Iran without him. An angered Hulagu lashed Abatai with 60 lashes, accusing him of not taking care of Jumghur appropriately. == Family ==