《资治通鉴·魏纪·魏纪四》
汉后主任左将军吴懿为车骑将军，授予符节，督领汉中，任丞相长史蒋琬为尚书令，总管国事，不久又给蒋琬加官行都护，授予符节，兼益州刺史。
汉主以左将军吴懿为车骑将军，假节，督汉中；以丞相长史蒋琬为尚书令，总统国事，寻加琬行都护，假节，领益州刺史。
After Han ascended the throne, Left General Wu Yi was made General of Cavalry and Chariots, and given a tally to lead Hanzhong. Minister of the Interior Jiang Wan was made Minister of State, and given overall command of affairs of state. Shortly afterwards, Jiang Wan was also made Acting Grand Protector, given a tally, and made Acting Inspector of Yi Province.