丁公 / Ding Gong

丁公 / Ding Gong enters the wiki through Hanji 170 part 2 as the former 项羽-side figure who once spared 刘邦 during the 彭城之战 but is later executed by Liu Bang after Xiang Yu’s defeat.

The episode makes Ding Gong a negative counterpart to 季布. Ji Bu is pardoned because 朱家 successfully frames his attacks on Liu Bang as loyal service to his own lord. Ding Gong, by contrast, is displayed and killed under the charge that he failed to remain loyal to Xiang Yu when office duty required it. Liu Bang therefore uses Ding Gong to define a public boundary for 旧敌忠义重释: enemy service can be honored, but betraying one’s assignment for private reasons can become exemplary disloyalty.

The host adds a source-scoped suspicion that Ding Gong may have spared Liu Bang for a promised benefit and may later have sought repayment. The page keeps that as an interpretation, not a settled fact.

Connections

• Hanji 170 part 2 - source case.
• 刘邦 and 项羽 - ruler who executes him and former lord whose service he is said to have betrayed.
• 季布 - positive contrast for former enemy loyalty after regime change.
• 彭城之战 - battlefield setting where Ding Gong previously let Liu Bang go.
• 旧敌忠义重释 and 战场胜利到建国秩序 - concepts that make his execution a founding-order signal.