From Rigpa Wiki: Thinley Norbu Rinpoche or Dungsé Thinley Norbu (1931-2011) was a prominent modern teacher in the Nyingma lineage. As the eldest son of Dudjom Rinpoche, he was trained in Tibet and became a main Dudjom Tersar lineage holder. Recognized as an incarnation of Tulku Trimé Özer, one of seven sons of Dudjom Lingpa, he was also considered to be an emanation of Longchenpa. Having lived in Bhutan, he finally settled in New York (USA) where he gathered students. He authored many books in English. Among his sons are Dzongsar Khyentse Rinpoche and Dungse Garab Rinpoche.