[1][2] In 1158 Dorje Gyalpo built a hermitage at Phagmo Drupa ("Sow's Ferry Crossing") in a juniper forest in Nêdong (Tibetan: སྣེ་གདོང, Wylie: sne gdong) above the Tsangpo (Brahmaputra) river valley.
After the death of Phagmo Drupa Dorje Gyalpo, his main disciple Jigten Sumgon appointed Chenga Drakpa Jungne as abbot Dentsa Thel.
In 1253, when Kublai Khan gave the Sakyapas temporal power in Tibet, Dorje Pel (Tibetan: རྡོ་རྗེ་དཔལ, Wylie: rdo rje dpal) the brother of Chenga Drakpa Jungne was appointed as the hereditary Tripon (myriarch) of the surrounding area of Nêdong.
From that time on the Tripon who as a monk, assumed the seat of the local government of Nêdong and also ruled as abbot at Dentsa Thel.
After he fought with a neighboring myriarchy, the then Sakya ruler of Tibet Ponchen Gyalwa Zangpo dismissed him as myriarch.