Korea under Yuan rule refers to the domination of the Yuan dynasty over the Korean Peninsula from approximately 1270 to 1356.[1] In the history of Korea, following the Mongol invasions of Korea and the capitulation of the Goryeo dynasty of Korea in the 13th century, Goryeo became a semi-autonomous vassal state and compulsory ally of the Yuan dynasty for approximately 80 years. The ruling line of Goryeo was permitted to rule Korea as a vassal of the Yuan, but members of the royal family were taken to Mongolia, raised there, and typically married to spouses from the Yuan imperial house. As a result, princes who became monarchs of Goryeo during this period were effectively imperial sons in-law (khuregen). Yuan overlordship ended in the 1350s when the Yuan dynasty itself started to crumble and King Gongmin of Goryeo began to push the Mongolian garrisons back.