The Kangxi Emperor (1654-1722 reigned 1661-1722) declared Tibet a protectorate of the Qing Empire and in 1727 installed two high commissioners, or Ambans, and a garrison of Qing troops from China in Lhasa [REF].
Pho-lha-nas or Polhaney of Tsang,[REF] an important Tibetan aristocrat, ruled Tibet with Qing support in 1728-1747.