Short answers, pulled from the story.
Kalu Rinpoche (1905-1989) was a Tibetan Buddhist lama, meditation master, scholar, and teacher from the Kham region of Eastern Tibet. He was one of the first Tibetan masters to teach in the West, founding centers in over a dozen countries and establishing the first retreat center in France to offer traditional three-year Shangpa and Karma Kagyu retreats to Western students.
Kalu Rinpoche was born in 1905 in the district of Treshö Gang chi Rawa in the Hor region of Kham, Eastern Tibet. He received his higher studies at Palpung Monastery, the foremost center of the Karma Kagyu school, where he remained for more than a decade and completed two three-year retreats.
Kalu Rinpoche left Tibet for Bhutan in 1955. In 1965, he established a monastery in Sonada, in the Darjeeling district of India, near Rumtek, the seat of the 16th Karmapa.
June Campbell, a former Kagyu nun and feminist scholar who translated for Kalu Rinpoche, wrote in her book Traveller in Space: Gender, Identity and Tibetan Buddhism that she had been in an abusive sexual relationship with him, which he framed as tantric practice. She also discussed the experience in a 1996 interview with Tricycle magazine. Separately, the Second Kalu Rinpoche disclosed in 2011 that he had been sexually abused at age twelve by older monks from his monastery.
The Second Kalu Rinpoche was born on the 17th of September 1990 in Darjeeling, India, to Lama Gyaltsen and his wife Drolkar. The Tai Situpa Pema Tönyö Nyinje formally recognized him as Kalu Rinpoche's reincarnation on the 25th of March 1992, a recognition immediately confirmed by the 14th Dalai Lama. He was enthroned on the 28th of February 1993 at Samdrup Tarjayling and given the name Karma Ngedön Tenpay Gyaltsen.
Kalu Rinpoche served as Vajra Master of the great meditation hall at Palpung Monastery and became the meditation teacher of the Sixteenth Gyalwa Karmapa. During his travels to central Tibet in the 1940s, his disciples included Reting Rinpoche, who served as regent of Tibet during the infancy of the Fourteenth Dalai Lama.