The Venerable Khenchen Thrangu Rinpoche was born in Kham, Tibet, in 1933. At the age of five, he was formally recognized by His Holiness the Sixteenth Karmapa and Tai Situpa as the ninth incarnation of the great Thrangu tulku. He entered Thrangu monastery, where, from the ages of seven to sixteen, he studied reading, writing, grammar, poetry, and astrology, memorized ritual texts, and completed two preliminary retreats. At sixteen, under the direction of Khenpo Lodro Rabsel, he began the study of the three vehicles of Buddhism while in retreat. At twenty-three he received full ordination from the Karmapa.

At the age of twenty-seven, he was forced to flee to India in 1959 during the Chinese Cultural Revolution. He was called to Rumtek monastery in Sikkim, where the Karmapa has his seat in exile. Because of his great scholarship and unending diligence, he was given the task of preserving the teachings of the Kagyu lineage-the lineage of Marpa, Milarepa, and Gampopa-so that one thousand years of profound Buddhist teachings would not be lost.

He continued his studies in exile, and at the age of thirty-five he took the geshe examination before 1500 monks at Buxador monastic refugee camp in Bengal and was awarded the degree of Geshe Lharampa. Upon his return to Rumtek, he was awarded the highest Khenchen degree. Because many of the Buddhist texts in Tibet were destroyed, Thrangu Rinpoche helped in beginning the recov-ery of these texts from Tibetan monasteries outside of Tibet. He was named Abbot of Rumtek monastery and the Nalanda Institute for Higher Buddhist Studies at Rumtek. Thrangu Rinpoche, along with Khenpo Tsultrim Gyamtso Rinpoche, was one of the principal teachers at the Institute, training all the younger tulkus of the lineage, including The Dzogchen Ponlop Rinpoche, who was in the first class. He was also the personal tutor of the four principal Karma Kagyu tulkus: Shamar Rinpoche, Situ Rinpoche, Jamgon Kongtrul Rinpoche, and Gyaltsab Rinpoche.

Because of his vast knowledge of the Dharma and his skill as a teacher, he was appointed by His Holiness the Dalai Lama to be the personal tutor for His Holiness the Seventeenth Karmapa.