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In page Dorgon:

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Dorgon died on 31 December 1650, during a hunting trip in Kharahotun[citation needed] (present-day Chengde, Hebei), after sustaining injuries despite the presence of imperial doctors. He was posthumously granted the title "Emperor Yi" (義皇帝) and the temple name "Chengzong" (成宗), even though he was never emperor during his lifetime, which is unique in all history of feudal China when only direct ancestors and deceased heirs of a higher degree to an emperor (such as one's own older brothers, one's father's older brothers, or one's cousins born into such uncles) were posthumously granted the title of Emperor. The Shunzhi Emperor even bowed thrice in front of Dorgon's coffin during the funeral.