A Chinese Biographical Dictionary/Achakpa
4Achakpa 阿速吉八. A.D. 1320–1328. Son of Yesun Timur, whom he succeeded as seventh Emperor of the Yüan dynasty. He was proclaimed Emperor at Xanadu; whereupon 燕帖木兒 Yen Timur, his father's Minister, declared at Peking for the sons of Kaisun. Civil war ensued, and ended in the capture of Xanadu and the disappearance of Achakpa. Known in history as 幼主.