Ben Gungyel. Some popular teaching stories (there are many) make him a contemporary of Pha dam pa Sangs rgyas, and indeed his name appears in early Zhi byed sources.
Jinpa, Mind Training, p. 103 (index under "Ben").
Disciple of Dgon pa ba. A brief biography appears in the biographies of the Lamrim Lamas by Tshe mchog gling.
