Orgyenpa Rinchen Pal
Orgyenpa (or Urgyenpa) Rinchen Pal (Wyl. o rgyan pa rin chen dpal) (1230-1309?) — the founder of the tradition known as ‘Approach and Accomplishment of the Three Vajras’ (Wyl. rdo rje gsum gyi bsnyen sgrub), one of the eight great chariots of the practice lineage. He was also one of the principal holders of the Kalachakra tantra lineages.