Complex sentence: It was founded in 1976 by the 16th Gyalwa Karmapa with Khenpo Karthar Rinpoche as abbot, a position which he continued to hold.
Split into simpler sentences: It was founded in 1976 by the 16th Gyalwa Karmapa with Khenpo Karthar Rinpoche as abbot. This was a position which he continued to hold.