What was the name of Genghis Khan's daughter who ruled the Ongud tribe?

Genghis Khan’s daughter who ruled the Ongud tribe was Alakhai Bekhi, also written Alagai Bäki or Alaqai Beki. She was the third daughter of Genghis Khan and his principal wife, Börte.

Alakhai’s marriage linked the Mongol ruling house with the Ongud, a powerful people living south of the Gobi near the northern Chinese frontier. The alliance gave Genghis Khan strategic access to the region and support during his campaigns against the Jin dynasty. Alakhai supplied horses and provisions and maintained influence among the Ongud.

In 1211, an Ongud revolt killed her husband and other supporters, but Alakhai escaped and helped the Mongols suppress the uprising. She reportedly persuaded her father to punish the actual conspirators rather than massacre the entire tribe. Genghis Khan later entrusted her with governing conquered territories in China proper, earning her the title “Princess Who Runs the State.” Khutulun was a famous Mongol princess and warrior, but she was not the Ongud ruler.