《旧唐书·本纪·卷十四》
二十三日，任命岭南节度使赵昌为江陵府尹、荆南节度使，任命户部侍郎杨於陵为广州刺史、岭南节度使。
乙亥，以岭南节度使赵昌为江陵尹、荆南节度使，以户部侍郎杨于陵为广州刺史、岭南节度使。
On the 23rd day, Zhao Chang, the governor of Lingnan, was appointed as the governor of Jiangling and the governor of Jingnan. Yang Yuling, the deputy minister of the Ministry of Civil Affairs, was appointed as the governor of Guangzhou and the governor of Lingnan.