Kaidu

Kaidu, grandson of Ogedei, launched a rebellion against Kublai Khan, challenging his authority as Great Khan. He claimed the Ogedeid line had the rightful claim to the throne, initiating a decades-long conflict in Central Asia.

Kaidu's forces fought Kublai's army at the Talas River in Central Asia. The battle was indecisive but established Kaidu as the dominant power in the region, controlling much of the former Chagatai Khanate.

Kaidu died from wounds sustained in a battle against the Yuan dynasty near the Altai Mountains. His death ended the major rebellion against Kublai's successors, though his sons continued resistance for a time.