陈登 / Chen Deng

陈登 / Chen Deng enters the wiki through the Hanji 1016-1018 late-Han branch as the official who can move between 吕布 and 曹操 without being trapped by either side’s expectations. Hanji 1016 supplies the precondition: 袁术 uses Chen Deng as leverage over 陈珪, but Chen Gui still refuses Yuan Shu and then uses the broken Yuan Shu-Lü Bu marriage path to open a route for Chen Deng toward Cao Cao’s court.

Hanji 1017 has Chen Deng meet Cao Cao in 197 CE, describe Lü Bu as brave but unreliable, and receive appointment as administrator of 广陵.

That episode makes Chen Deng’s value operational. Cao Cao asks him to handle eastern affairs and secretly contact Lü Bu’s people, while Chen Deng turns Guangling into a local base by training soldiers, storing grain, and recruiting Jiang-Huai figures. The source later says Chen Deng defects first during Cao Cao’s 198 CE attack on Lü Bu at 下邳, completing the family’s turn from Lü Bu’s orbit to Cao Cao’s.

Hanji 1018 continues the same channel. The episode says Cao Cao values Chen Deng, promotes his father 陈珪, and appoints Chen Deng to Guangling, while declining to give Lü Bu the 徐州 governor title Lü Bu wanted.

Chen Deng’s central move is interpretive. When Lü Bu believes Chen Deng and Chen Gui have benefited at his expense, Chen Deng reports Cao Cao’s “raise a tiger” judgment in a form that turns suspicion into a bearable compliment. The episode uses this scene to create 饥附饱扬: Chen Deng understands Lü Bu’s vanity, Cao Cao’s caution, and the interest structure behind unstable attachment.

The page remains source-scoped. The Hanji 1017 source gives a broader family-survival and Guangling base-building frame, while the Hanji 1018 title points toward Chen Deng’s wider reputation among Cao Cao, Sun Ce, and Liu Bei; the provided texts mainly develop the Cao Cao/Lü Bu branch.

Connections

• 陈珪 - father and political partner in the source.
• 吕布 - volatile ruler whom Chen Deng placates.
• 曹操 - powerholder who rewards Chen Deng and judges Lü Bu.
• 袁术 and 韩胤 - Hanji 1016 pressure and marriage-envoy branch that precedes Chen Deng’s Cao Cao trip.
• 广陵 - administrative base Chen Deng receives and develops in Hanji 1017.
• 轻于去就, 饥附饱扬, and 利益重构式说服 - concepts sharpened by Chen Deng’s reading and handling of Lü Bu.