Yang Guozhong
Meanwhile, Yang Guozhong repeatedly tried to provoke An into rebelling, including arresting and executing staff members at An's mansion in Chang'an. In 755, An finally did. In 756, after Geshu was defeated by An's forces, after being forced by Yang Guozhong to engage An, Tong Pass, the last major defense against An's forces, fell to An. Yang Guozhong suggested fleeing to Chengdu, the capital of Jiannan Circuit, of which Yang Guozhong was commander. On July 14, Emperor Xuanzong, keeping the news secret from the people of Chang'an, took the imperial guards to escort him, Consort Yang, her family, and his immediate clan members, and exited Chang'an, heading toward Chengdu. Attending him were Yang Guozhong, his fellow chancellor Wei Jiansu, the official Wei Fangjin (魏方進), the general Chen Xuanli (陳玄禮), and some eunuchs and ladies in waiting close to him, including Gao.