Negübei was a khan of the Chagatai Khanate

Chagatai Khanate

The Chagatai Khanate was a Turko-Mongol khanate that comprised the lands ruled by Chagatai Khan , second son of the Great Khan Genghis Khan, and his descendents and successors...

 (1271-1272?). He was the son of Sarban.

In 1271 Negübei was appointed by Kaidu

Kaidu

Kaidu was the leader of the House of Ogedei and the de facto khan of the Chagatai Khanate. He ruled part of modern-day Xinjiang and Central Asia during the 13th century, and actively opposed his uncle, Kublai Khan, who established the Yuan Dynasty in China until his death in 1301...

 as head of the Chagatai Khanate. A year after his enthronement, however, he rebelled against his master, possibly in conjunction with the revolts launched by the sons of Alghu

Alghu

Alghu was a khan of the Chagatai Khanate . He was the son of Baidar and the grandson of Chagatai Khan.In 1260 he was appointed as head of the ulus of the Chagatai Khanate by the Great Khan claimant Ariq Böke, in opposition to the child khan Mubarak Shah and his mother Orghina...

 and Baraq

Baraq (Chagatai Khan)

Baraq was a khan of the Chagatai Khanate. He was the son of Yesünto'a, and a grandson of Chagatai Khan. A convert to Islam, he took the name Ghiyas-ud-din.-Background:...

. Kaidu responded by sending an army against Negübei, and the latter was forced to flee to the east. Soon afterward, he was killed and subsequently replaced by Buqa Temür

Buqa Temür

Buqa Temür was a khan of the Chagatai Khanate . He was the son of Qadaqchi.Sometime around 1272 Buqa Temür killed Negübei, who had rosen in revolt against Kaidu. Perhaps as an award for this, Kaidu appointed him as head of the Chagatai Khanate...

.