《宋史·本纪·卷十七》
初四，任命苏轼为尚书右承，宗室赵士不见追封为魏国公。
癸巳，以苏辙为尚书右丞，宗室士伣追封魏国公。
On the fourth day, Su Shi was appointed as the Right Attendant of the Ministry of Justice, and Zhao Shi, a member of the royal family, was posthumously enfeoffed as Duke of Wei.