Changyi, Shandong (昌邑市), county-level city of Weifang, Shandong, China
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Prince He of Changyi (died 59 BC), emperor of the Chinese Han Dynasty for 27 days in 74 BC
Ku's lineage is derived from descent from the legendary Yellow Emperor, then through the line of Shaohao (as opposed to the line through Changyi, which led to to Zhuanxu).