A Giao Chỉ prefect, Shi Xie, who was in the sixth generation from his ancestors who migrated to northern Vietnam during the Wang Mang era, ruled Vietnam as an autonomous warlord for forty years and was posthumously deified by later Vietnamese monarchs. In the words of Stephen O'Harrow, Shi Xie was essentially "the first Vietnamese." According to Holmgren, Shi Xie's rule "is one of the milestones in the development and fusion of two new social groups in Tongking - a sinicised Vietnamese group and a vietnamised Chinese group. The latter gradually came to identify with the interests of the delta rather than with the Chinese empire". Taylor (1983) also believed his imperial appointments gave formal legitimacy to "the emergence of a regional ruling class with strong ties to the local society". It is apparent from events following his death that he "presided over an aberrant regional power arrangement based on great Han-Viet families that could field private armies". From the Chinese's view, Shi Xie stood as a "frontier guardian"; from the Vietnamese side, he was the head of a regional ruling-class society. It was relatively easy for people to shift back and forth between these two perspectives. Thus, the man of Chinese or mixed ancestry playing a mixed role or, in some cases, an unambiguous Vietnamese role is a common figure in early Vietnamese history. "He was the first of many such people to emerge as strong regional leaders who nurtured the local society in the context of Chinese civilization".