Zhu Ci
China fell into civil war in the next year. The Chinese capital Chang'an was occupied by Zhu Ci, one of a Chinese rebellion army leaders. Shang Gyaltsen sent a mission to China, suggested that China could request Tibetan reinforcements for help. The Chinese emperor Dezong had to take his suggestion, and promised to cede Beiting and Anxi in return. Shang Gyaltsen sent 20 thousand men to help Tang China, but before they reached Chang'an, Zhu Ci was killed by his general and the rebellion was quickly put down.