By a comparative textual research on a various types of Dunhuang Manuscripts dating from the period of the Return to Allegiance Army (848-1035) and a specially investigation on the records of Taizi (the prince) and the relative events, this article pointed out that Taizi in Dunhuang Manuscripts are sometimes refer to the Tcum - ttehl of Khotan for certain cases, but sometimes the title of Taizi are belong to the princes of the Cao Family, the local magnate of Dunhaung in ruling the government of the Return to Allegiance Army in cases.
