Evidently the 'original' name of Vairocana (the Rnying ma pa figure). The spellings Ba'u Gan chag rtag, Rgan chag stag, A 'u Gan chag stag, etc., occur. His uncle's name was He 'dod (also a very unusual name). Both he and his uncle have the 'family' or clan name Pa gor (Pa gor or Spa gor, which is also a place name in the Yarlung Valley).
