Trengpo Tertön Sherab Özer
Trengpo Terchen Sherab Özer (1518-1572), also known as Drodul Lingpa, was an important tertön in central Tibet who revealed the Droltik (dam chos grol ba'i thig le) or Gongpa Rangdrol cycle. The student of Drigung Rinchen Puntsok (the father of Chögyal Puntsok), he was the founder of Palri Monastery.