Grave M2001 in the Guo State cemetery within Sanmenxia City should be assigned to the late stage of the late Western Zhou period, i. e. from Xuanwang's through Youwang's reign. This date was close to the time the Western Guo people migrated eastward as mentioned in historical records,and also corresponded with the time of Guo Wengong living in Zhou King Xuanwang's reign. In bronze inscriptions, we read the names “Guoji” (on bronzes from M2001), “Guoji-shi” (on the Guoji-shi Ziduan li tripod) and “Guo Wengong Ziduan” (on the Guo Wengong Ziduan cling tripod; both the li and the ding occurring in M1631) . Actually they refer to the same person, who was named “Guo Wengong” in literary documents. Therefore, the tomb-owner of M2001 can be definitely identified just as Guo Wengong.
