Gorampa Sonam Senge (go rams pa bsod nams seng ge)
A famous Sakya master who lived from 1429 -1489 AD. He was the of author of a vast collection of commentaries on sutra and tantra and is venerated by all schools of Tibetan Buddhism. He instituted the formal study of logic in the Sakya tradition. He founded the Thupten Namgyal Ling monastery in Tanag.