Jetsün Drakpa Gyaltsen
Jetsün Drakpa Gyaltsen (Tib. རྗེ་བཙུན་གྲགས་པ་རྒྱལ་མཚན་, Wyl. rje btsun grags pa rgyal mtshan) (1147-1216) — the third of the five Sakya patriarchs, and the author of a famous commentary on Parting from the Four Attachments. He was the son of Sachen Kunga Nyingpo and the brother of Sönam Tsemo.