Jamyang Donyo Gyaltsen (1310 - 1344), in orthographic spelling Jam dbyangs don yod rgyal mts'an, was a ruler of Sakya which had a precedence position in Tibet under the Yuan dynasty.
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.
[1] Internal trouble soon beset the Sakya complex, since the senior ruler Khatsun Namkha Lekpa Gyaltsen was more interested in religious than worldly business.
He was the son of Zangpo Pal and his consort Machig Shonnu Bum and held the official title tawen gushri (taiyuan guoshi).