Lachung Apo

Lachung Apo (Tib. བླ་ཆུང་ཨ་ཕོ་, Wyl. bla chung a pho) alias Thupten Sherab Gyatso (thub bstan shes rab rgya mtsho, 1905–1975), was a close friend and biographer of Gendün Chöpel. He studied at Dzogchen Monastery and assisted Dudjom Rinpoche in composing his famous work on the tenets of the Nyingma school.