Phagmo Drupa Dorje Gyalpo (Tibetan: ཕག་མོ་གྲུ་པ་རྡོ་རྗེ་རྒྱལ་པོ, Wylie: phag mo gru pa rdo rje rgyal po) [1110–1170], was one of the three main disciples of Gampopa Sonam Rinchen who established the Dagpo Kagyu school of Tibetan Buddhism; and a disciple of Sachen Kunga Nyingpo [1092–1158] one of the founders of the Sakya school of Tibetan Buddhism. He was the elder brother of Kathog Dampa Deshek [1122–1192], who founded Kathog monastery and the Kathog branch of the Nyingma school.[1][2]