The Tuyuhun were a powerful nomadic tribe in East Asia who flourished in the 4th-7th centuries, roaming the areas of modern
Qinghai and
Gansu. The Tuyuhun were related to the
Xianbei. The tribe was named after its founder, Murong Tuyuhun (慕容吐谷渾), an older brother of the
Former Yan's ancestor
Murong Hui. Their empire was also known as A-zha in Tibetan and Henanguo 河南國 in Chinese. At times, it was also known as Bailan (白蘭). Their tribe was founded around 285 by Murong Tuyuhun.
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