Dhongthog Rinpoche Tenpai Gyaltsen (1933–2015) was a preeminent scholar of the Sakya school of Tibetan Buddhism. He trained in eastern Tibet in Derge under Jamyang Khyentse Chokyi Lodro and was the head teacher of Dhongthog Monastery in Garze. Following the Chinese occupation of Tibet, Rinpoche left in 1957 for India, where he preserved Tibetan culture and continued his scholarship at Tibet House in New Delhi. In 1979, he moved to Seattle and worked closely with the nonsectarian savant Dezhung Rinpoche and founded the Sapan Institute to support his scholarly and publishing activities. The most well known among his numerous works are his English-Tibetan dictionary (1988) and his unique history of the Sakya school (1976). Married with three children, he passed away in Seattle on January 13, 2015.