Yudra Nyingpo (Tibetan: གཡུ་སྒྲ་སྙིང་པོ, Wylie: g.yu sgra snying po) was one of the chief disciples of Vairotsana and one of the principal lotsawa "translators" of the first translation stage of texts into Tibetan.Yudra Nyingpo became one of the greatest masters of Nyingma Dzogchen Semde and Longdé teachings: Yudra Nyingpo was a prince of Gyalmo Tsawe Rong (Gyarong) in Eastern Tibet.In Gyarong, Yudra Nyingpo received teachings from Vairocana, who was exiled in the area for a certain period of time.[1]Yudra Nyingpo translated many works, including the 'Thirteen Later Translations' (Wylie: phyi 'gyur bcu gsum)[2] of the 'Eighteen Major Scriptural Transmissions of the Mind Series' (Wylie: sems sde lung chen po bco brgyad): Liljenberg (2009: p. 51) holds that there are variances in the listing of the Thirteen Later Translations: The earliest lists of titles of the Thirteen Later Translations are found in the writings of the twelfth century treasure revealer Nyang Ral Nyi ma 'od zer.He gives two lists, one in his Zangs gling ma biography of Padmasambhava, and the other in his religious history, the Me tog snying po.