Jincheng is named in the account of Meng Da’s failed rebellion as one of two neighboring cities whose governors he believes will send troops to support him. Its importance lies not in a described siege or change of control, but in the false expectation of help that leaves Meng Da exposed when Sima Yi’s forces arrive.

Setting and Narrative Context

Jincheng appears alongside Shangyong in the account of Meng Da’s attempted revolt against Wei. The narrative places the city within the network of local powers whose military support Meng Da seeks to draw into his plans. It provides no further description of the city’s layout, population, or administration.

Role in Meng Da’s Rebellion

Meng Da believes the governors of Jincheng and Shangyong are preparing to join his rebellion. In fact, they delay sending troops, claiming that they need more time to prepare. The account later reveals that this delay is deceptive: the cities’ soldiers ultimately arrive against Meng Da, not in support of him.

The reversal comes as Meng Da’s position is already collapsing. After Sima Yi’s forces surround the city where Meng Da is based, Meng Da sees two columns approaching and takes them for the promised reinforcements. He goes out to greet them, only to discover that the troops from Jincheng and Shangyong have betrayed him. The resulting defeat ends in Meng Da’s death, while Sima Yi enters the city as a victor.

Narrative Significance

Jincheng’s part in the episode is defined by withheld support and mistaken trust. Its governor’s delay keeps Meng Da expecting aid, while the eventual arrival of the troops turns that expectation into a trap. The city therefore helps illustrate how the rebellion is undone not only by Sima Yi’s deception and military pressure, but also by the failure of the allies on whom Meng Da relies.