It is the closest residence to the Hall of Mental Cultivation, the living quarters of the Qing emperors since 1722.
It was built in 1420 as the "Palace of Eternal Pleasure" (长乐宫; Chǎnglègōng).
In 1535, the Jiajing Emperor renamed it as the "Palace of Embodying Morality" (毓德宫; Yùdégōng).
It received its current name in 1616, during the reign of the Wanli Emperor, and underwent renovations in 1697 and 1897.
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