Zhang Yudrakpa Tsondru Drakpa

Zhang Yudrakpa Tsöndru Drakpa (1122–93) (zhang g.yu brag pa brtson 'gru brags pa), also known as Gungtang Lama Zhang (gung-thang bla-ma zhang) and often simply as Lama Zhang, was the founder of the Tshalpa Kagyu sect of Tibetan Buddhism. He was a prominent religious figure, and his extensive involvement in the political and military conflicts of Tibet was controversial at the time. Lama Zhang played a key role in the medieval Buddhist revival in Central Tibet, also called the “Tibetan renaissance”.