Background
The hegemony of the Sakya Monastery over Tibet, established by Sakya Pandita and Phagpa in the 13th century, relied on a close working relation with the Mongol regime of the Yuan dynasty (1271-1368). Members of the Khon family usually held the functions of ''dansa chenpo'' or abbot-rulers, and ''Dishi'' or Imperial Preceptors. However, after the death of the old abbot-ruler Zangpo Pal in 1323, his numerous sons were divided up into four branches, namely Zhitog, Lhakhang, Rinchengang, and Ducho.Factional strife
Internal trouble soon beset the Sakya complex, since the senior ruler Khatsun Namkha Lekpa Gyaltsen was more interested in religious than worldly business. In 1341 a clash occurred between the Zhitog and Rinchengang branches. Khatsun Namkha Lekpa Gyaltsen, who belonged to the Zhitog branch, was forced to step down as abbot-ruler. In his stead, Jamyang Donyo Gyaltsen of the Rinchengang branch was elevated to the ruling position. He was the son of Zangpo Pal and his consort Machig Shonnu Bum and held the official title ''tawen gushri'' (taiyuan guoshi). During his tenure the administration of Tibet was handled by the '' dpon-chen'' (''ponchen'') Sonam Pal (1337-1344). Not much is known about the short reign of Jamyang Donyo Gyaltsen, and he died after three years, in 1344. His successor was his brother Lama Dampa Sonam Gyaltsen, a famous scholar.Luciano Petech 1990, pp. 100-1.See also
* Tibet under Yuan rule * History of Tibet *References
{{DEFAULTSORT:Gyaltsen, Jamyang Donyo 1310 births 1344 deaths Sakya Trizins