Zurchen Chöying Rangdrol
Zurchen Chöying Rangdrol (Tib. ཟུར་ཆེན་ཆོས་དབྱིངས་རང་གྲོལ་, Wyl. zur chen chos dbyings rang grol) (1604-1657/69) — a great Nyingma master who particularly studied, practised and spread the Northern Treasures and the Guhyagarbha Tantra teachings. Some of his main students were Minling Terchen Gyurme Dorje, Sangdak Trinlé Lhundrup and the Fifth Dalai Lama—of whom he composed a biography.