Chennga Dorje Sherab (spyan snga rdo rje shes rab) was a disciple of both Jikten Gonpo Rinchen Pel ('jig rten mgon po rin chen dpal, 1143-1217), the founder of Drigung Til Monastery ('bri gung mthil), and one of his main disciples, Won Sherab Jungne (dbon shes rab 'byung gnas, 1187-1241). Details about his life are not currently available. Some sources mention an extensive biography but it appears to have been lost.
He wrote two extensive commentaries on Won Sherab Jungne's compilation of Jikten Gonpo's teachings, known as The Single Intention (dgongs gcig). These commentaries are titled The Lamp of Illuminated Wisdom (snang mdzad ye shes sgron ma) and O Gema ('od ge ma). Together they are known as the Dorshema (rdor she ma), a contraction of the name Dorje Sherab.
Bibliography
Dkon mchog rgya mtsho. 2004. Chos rje 'jig rten mgon po'i slob ma. In 'Bri gung chos 'byung, pp. 311-343. Beijing: Mi rigs dpe skrun khang, pp. 338-339. TBRC W27020.