The Rise of the Jin Dynasty: The Northern Hegemon and the Song-Jin Stalemate from the Perspective of Xuzi Zhi Tongjian

Introduction

The Jin Dynasty (1115–1234), established by the Jurchen people, was a major political entity in Chinese history that engaged in a long-standing confrontation with the Southern Song Dynasty. As one of the key northern regimes recorded in the Xuzi Zhi Tongjian (Continued Comprehensive Mirror to Serve as a Aid to Government), the establishment and expansion of the Jin profoundly altered the political landscape of East Asia. It brought an end to the Northern Song Dynasty and created a bipolar structure where the Northern and Southern Song dynasties coexisted alongside the Jin. This article synthesizes records from the Xuzi Zhi Tongjian to outline the origins of the Jin, its pivotal events, and its impact on Song-Jin relations.

Core Knowledge Points

1. Establishment of the Jin and Ethnic Background

The Jurchen people originally resided in the Changbai Mountains region and were suppressed by the Liao Dynasty. In 1114, Jin Taizu, Wanyan Aguda, led his forces in a rebellion against the Liao. In 1115, at Xili Lake (now near Hailun, Heilongjiang), he proclaimed himself emperor, adopting the state name "Great Jin" and establishing his capital at Shangjing Huaningfu (now Acheng, Heilongjiang). The Xuzi Zhi Tongjian explicitly notes: "The Jurchens were formerly tributaries of the Liao; now that they have established themselves, their momentum cannot be controlled." This foreshadowed the Jin's replacement of the Liao as the new northern power.

2. The Jin's Conquest of the Liao and the Song-Jin Alliance

In 1120, Song Emperor Huizong, seeking to resolve the threat posed by the Liao, dispatched envoys to negotiate with the Jin, resulting in the "Maritime Alliance" (Haihao Zhimeng). Under this agreement, the Song and Jin were to attack the Liao from both sides. In 1125, the Jin army conquered and destroyed the Liao. However, this diplomatic strategy was exploited by the Jin, exposing the military weakness of the Song. The Xuzi Zhi Tongjian details the specific terms of the "Maritime Alliance" and the miscalculations made by the Song court, laying the groundwork for the subsequent Jingkang Incident.

3. The Jingkang Incident and the Southern Crossing

In 1126, the Jin army marched south and breached Bianjing (now Kaifeng, Henan), abducting Emperors Huizong and Qinzong, along with a vast number of imperial family members and craftsmen. This event is historically known as the "Shame of Jingkang." The Xuzi Zhi Tongjian records: "Jin rulers Wanyan Zonghan and Wanyan Zongbi besieged Bian; the two emperors were taken north." Subsequently, Zhao Gou crossed to the south to establish the Southern Song Dynasty, leading to a stalemate along the Huai River and Great San Pass, separating the two powers.

4. War and Peace between the Song and Jin

After securing the north, the Jin gradually sinicized and refined its institutions. The Xuzi Zhi Tongjian records multiple wars and peace negotiations between the Song and Jin, such as the "Shaixing Peace Agreement" (1141). During the reigns of Song Xizong and Song Ningzong, relations fluctuated between war and peace. Although the Jin held a military advantage, it failed to completely conquer the Southern Song due to ethnic contradictions and internal pressures.

Connection to Xuzi Zhi Tongjian

The Xuzi Zhi Tongjian was compiled during the Yuan Dynasty under the chief editorship of Tuotuo. It chronicles events from the Five Dynasties period to the fall of the Song. Its "Song Records" section provides a systematic overview of the history of the Jin Dynasty. The book not only details the evolution of the Jin's political system and the succession of its emperors (such as Jin Taizong, Jin Xizong, and Jin Zhangzong) but also demonstrates the military, political, and cultural interactions between the two states through diplomatic documents and war logs. For instance, the text notes that the Jin implemented the "Meng'an and Muke system," which contrasted with the Song's bureaucratic system, highlighting the characteristic of "rule of barbarians and Han separately."

Furthermore, the Xuzi Zhi Tongjian emphasizes that the threat posed by the Jin to the Song was strategic in nature: Jin cavalry tactics were highly efficient, while Song armies relied on infantry and waterways. These geographic and tactical differences determined the protracted nature of the Song-Jin wars. The book's critique of the "Maritime Alliance" reflects the warning given by historians like Sima Guang regarding "inviting the wolf into the house" (bringing in a dangerous adversary), serving as an important historical basis for later reflections on Song-Jin relations.

In summary, the Jin Dynasty is not only an indispensable political entity in the Xuzi Zhi Tongjian but is also key to understanding the Song-Jin stalemate, ethnic integration, and the evolution of international relations in East Asia. Through its records, readers can clearly see how the Jin rose from a frontier tribe to a central hegelon, profoundly influencing the historical trajectory of the Song Dynasty.