Lotro Gyaltsen (1332–1365), in orthographic spelling bLo gros rgyal mts'an, was a ruler of Sakya, which had a position of precedence in Tibet under the Yuan dynasty.
[7] Moreover, there was internal strife in Sakya which eventually led to the murder of the influential lama Kunpangpa, uncle of Lotro Gyaltsen, in 1357.
Changchub Gyaltsen, who meanwhile received the title Tai Situ from the Mongol ruler Toghon Temür, now settled the affairs of the incapacitated Sakya and installed a garrison there.
A scion of the Khon family called Kunga Rinchen was reportedly appointed abbot of the main Sakya palace Zhitog.
Whatever the case, Changchub Gyaltsen ruthlessly crushed the last resistance by the ex-dpon-chen Wangtson in 1358 and was established as regent of entire Central Tibet (Ü-Tsang).