Gtsang po pa Dkon mchog seng ge/ Gtsang pa Bkra shis (?-1218/1219)
He was disciple of
His most important student was another central Tibet, named 'Gro mgon Ti shri ras pa (Protector of Beings, the Imperial Preceptor, Cotton-clad) Sangs rgyas ras chen (1164/1165-1236). Although originally trained in different branch of the Bka' brgyud tradition, the 'Ba' rom pa, he was a student of Gtsang po pa after he arrived in the Mi nyag realm in 1196/1197. He was thus the second and last of the ethnically Tibetan imperial preceptors to serve at the Mi nyag court. When the Mongols eliminated the Mi nyak dynasty, one of his students, a Tibetan native to the Mi nyak region named Gsang ba ras pa dkar po (The Secret One, Clad in White Cotton) Shes rab byang chub (1198/1199-1262) continued the 'Ba' rom pa Bka' brgyud tradition. He later met Qubilai Khan, creating a direct link between the Mi nyag tradition of imperial preceptors and the Mongol Yuan establishment of a position bearing the same title.
Ruth Dunnell. The Hsia Origins of the Yüan Institution of Imperial Preceptor. Asia Major. Third Series, Vol. 5, part 1, 1992, pp. 85-111
Elliot Sperling. “Rtsa-mi lo-tsā-ba Sangs-rgyas grags-pa and the Tangut Background to Early Mongol-Tibetan Relations,” in Per Kvaerne, ed., Tibetan Studies. Proceedings of the 6th Seminar of the International Association for Tibetan Studies, Oslo, 1994, pp. 801-824 & “‘Lama to the King of Hsia’” The Journal of the Tibet Society, vol. 7, 1987, pp. 31-50 [based mainly on an 18th century source that cites much earlier original sources now lost].