 Gelug’s (Dge lugs) theory of the two truths is campioned by Tsongkhapa Lobsang Dragpa (Tsong khapa Blo bzang grags pa, 1357–1419). Tsongkhapa’s theory is adopted, expanded and defended in the works of his immediate disciples—Gyaltsab Jé (Rgyal tshab Rje, 1364–1432), Khedrub Jé (Mkhas grub Rje, 1385–1438), Gendün Drub (Dge ‘dun grub,1391–1474)—and other great Gelug thinkers such as Sera Jetsün Chökyi Gyaltsen (Se ra Rje tsun Chos kyi rgyal tshan, 1469–1544), Panchen Sönam Dragpa (Paṇ chen Bsod nams grags pa,1478–1554), Panchen Lobsang Chökyi Gyaltsen (Paṇ chen Blo bzang chos kyi rgyal tshan,1567–1662), Jamyang Shepai Dorje (‘Jam dbyangs Bzhad ba'i Rdo rje, 1648–1722), Changkya Rölpai Dorje (Lcang skya Rol pa'i rdo rje, 1717–86), Könchog Jigmé Wangpo (Kon mchog ‘jigs med dbang po, 1728–91), and many others scholars.