Saito Dosan vs Wanyan Zongbi

Dosan overthrew the Toki clan, the legitimate rulers of Mino Province, and declared himself daimyo. This coup, achieved through a combination of military force and political maneuvering, marked his rise from a commoner to a powerful lord.

Dosan formed an alliance with Oda Nobuhide, sealed by the marriage of his daughter Nohime to Nobuhide's son Nobunaga. This alliance secured Dosan's eastern flank and strengthened both clans against the Imagawa.

Dosan was killed in battle against his son Saito Yoshitatsu at Nagara-gawa. Yoshitatsu, who had rebelled against his father, defeated Dosan's forces, ending Dosan's rule over Mino and his life.

Wanyan Zongbi led a major Jin invasion of Southern Song territory, advancing deep into the south. He captured the Song capital of Hangzhou temporarily but was eventually repelled by Song forces.

Wanyan Zongbi's Jin army was defeated by Yue Fei's Song forces at Yancheng. This battle was a major setback for Jin and demonstrated the effectiveness of Yue Fei's military tactics.

Wanyan Zongbi played a key role in negotiating the Treaty of Shaoxing with the Southern Song. The treaty established the Huai River as the border and required Song to pay tribute to Jin, ending major hostilities.

Wanyan Zongbi demanded the execution of Yue Fei as part of the peace settlement. The Song court complied, executing Yue Fei, which removed a major obstacle to Jin's security.

Wanyan Zongbi died, having been one of the most influential Jin generals. His campaigns and diplomacy shaped Jin-Song relations for decades.