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 also wrote extensive Lamdre commentaries as well as other commentaries on Tara and other sutra and tantra topics. He was the son of Sachen Kunga Nyingpo and the brother of Sönam Tsemo.