Draktengpa Yonten Tsultrim (brag steng pa yon tan tshul khrims) was a lineage holder of the Vajra Panjarnata Mahākāla. He was a student of Rinchen Zangpo (rin chen bzang po, 958-1055) and a teacher of Mel Lotsāwa Lodro Drakpa (mal lo tsA ba blo gros grags pa, d.u.), who was a teacher of Khon Konchok Gyelpo ('khon dkon mchog rgyal po, 1034-1102) and Sachen Kunga Nyingpo (sa chen kun dga' snying po, 1092-1158).
According to the Blue Annals, Draktengpa was from Lato (las stod).
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Mahākāla Pañjarnātha
Mahākāla Pañjarnātha, or "Lord of the Tent," is the protector of the Hevajra cycle of tantras. The iconography and rituals are found in the eighteenth chapter of the Vajra Pañjara Tantra, an exclusive 'explanatory tantra' to Hevajra itself. It is dated to the late fourteenth or early fifteenth century.
Bibliography
Roerich, George, trans. 1996. The Blue Annals. 2nd ed. Delhi: Motilal Banarsidas, p. 354.
Vitali, Roberto. 2001. "Sa skya and the mNga' ris skor gsum legacy: The Case of Rin chen bzang po's Flying Mask." Lungta 14, pp. 5-44.