Chogyal Pagpa Lodro Gyaltsen (chos rgyal 'phags pa blo gros rgyal mtshan, 1235-1280) was born in Ngari (mnga' ris) into the illustrious Khon ('khon) family that had recently established the Sakya institution in Tsang. His father was Sonam Gyaltsen (bsod nams rgyal mtshan, 1184-1239), the younger brother of the great scholar Sakya Pandita Kunga Gyaltsen (sa skya pan di ta kun dga' rgyal mtshan, 1182-1251). His mother was Kunga Kyi (Kun dga' kyid).