《旧唐书·本纪·卷十七》
三月初一为乙巳日，以兵部尚书郭钊为梓州刺史、剑南东川节度使。
三月乙巳朔，以兵部尚书郭钊为梓州刺史、剑南东川节度使。
The first day of the third moon was the Yisi day; Guo Zhao, the minister of military affairs, was awarded the title of Zizhou governor and also the regional commander of Jiannan Dongchuan Region.