Nianhan (1080–1136),[1] also known by his sinicised name Wanyan Zonghan, was a Jurchen noble and military general who lived in the founding and early years of the Jurchen-led Jin dynasty (1115-1234), which ruled northern China between the 12th and 13th centuries.
Nianhan was the eldest son of Sagai (撒改) and a great-grandson of Wugunai, the chief of the Wanyan tribe.
[2] Nianhan served as one of Aguda's chief advisers in the Jurchen rebellion against the Khitan-led Liao dynasty in 1114.
[3] Under Aguda's successor, Wuqimai (Emperor Taizong), Zhanhan played a major role in the wars against the Song dynasty.
[4] When the war against the Song dynasty resumed in 1126, Nianhan, who had taken Taiyuan, joined Wolibu at the walls of Bianjing.