Lala Sonam Chödrup Series
Lala Sönam Chödrup (glag bla bsod nams chos 'grub, 1862–1944) of Nyarong was regarded as a speech emanation of Dzogchen Pema Rigdzin. He is best known for his biography of Longchenpa and his commentary on the Aspiration of Sukhāvatī.