Sengtruk Pema Tashi
Sengtruk Pema Tashi (Wyl. seng phrug pad+ma bkra shis) or Sherab Zangpo is known as the first khenpo of Dzogchen Shri Singha. He was a teacher of Khenpo Pema Vajra, Gyalsé Shenpen Tayé and Patrul Rinpoche. In his youth he spent time studying at Mindroling monastery.