Career
During the reign of Emperor Tianzuo, the Jurchens led by Aguda established the Jin dynasty in 1115. Aguda formed the Alliance on the Sea with the Song Dynasty against the Khitans, and began to establish authority over former Liao Dynasty territory in Mongolia. The Jurchens advanced from Manchuria in 1117, and captured the Liao dynasty"s supreme capital in 1120, then its central capital in 1122.
Another coup was attempted in 1121 to install Tianzuo"s son, the prince of Jin, onto the throne, but was again thwarted.
The prince was executed, and most of the coup organizers defected to the Jurchens" camp. In 1122, Tianzuo fled the southern capital Nanjing (today"s Beijing) to the western region.
After the end of the Northern Liao in Nanjing, a general Yelü Dashi (耶律大石) rejoined Tianzuo. Tianzuo fled to seek refuge with the Xi Xia.
Later Tianzuo expressed his intention to attack the Jurchens, but Yelü Dashi withheld his support, considering it folly as the Jurchens were too strong.
In 1125, Tianzuo was captured by the Jin dynasty, ending the Liao Dynasty.