《三国志·魏书·少帝纪》
十九日，加封晋公司马昭为晋王，增加十个郡的采邑，连同之前的二十个。
己卯，进晋公爵为王，封十郡，并前二十。
On the nineteenth, Imperial Clan Member Sima Zhao was given the title of Prince of Jin and received ten additional commanderies as his fief, in addition to the previous twenty.