Goryo lost her independence fairly as the kings of Goryo were appointed or expelled by Yuan Dynasty on its needs during the period of Yuan`s intervention in Goyo affairs. As a grandson-in-law and a son-in-law of Yuan Emperors, however, Chungseonwang(忠宣王) of Goryo had a high status as a king. Especially, Chungseonwang contributed to the enthronement of the Emperor Wuzong(武宗) and received the stat us of the King of Goryo(高麗王) and the King of Shenwang(瀋王).
Chungseonwang did not abdicate two kingship to his son, Wangdo(王燾, 忠肅王). He abdicated the kingship of Goryo to Wangdo and the kingship of Shenyang to his nephew, Wanggo(王暠) separately. While Chungseonwang stayed in Beijing, he abdicated the kingship of Shenyang to Wanggo as he was pressed and checked by the Emperor Renzong. Chunseonwang predicted that his political life end soon as he supported the Grand Empress Hongseong. He decided to give the kingship of Shenwang(瀋王) to Wanggo before the kingship was taken away by the Emperor Renzong.
Chungseonwang supported Chungsukwang(忠肅王) rather than Shenwang Wanggo by providing Chungsukwang with the kingship of Goryo and the economic resources of Liaoyang, the capital area of Liaodong. He expected Shenwang Wanggo to spupport Chungsukwang to maintain the old territory of Goguryo. The territory of Shenwang meant the old territory of Goguryo Chungseonwang regretted that the King Taejo, the founder of Goryo Dyansty, did not accomplish his Norther Expedition policy, and he tried to succeed it, but not by force but by political manoeuvres. But he had trouble of being shaken easily by Yuan`s pressure. Though Chungseonwang dreamt of a revival of Goryo by dividing and succeeding the kingships of Goryo and Shenwang, the King of Shenwang tried to take the kingship of Goryo resulting in the internal disputes and nationwide confusion and splitting of the royal bureaucrats. The situation caused more subordination of Goryo to Yuan Dynasty, even to the emergence of the `Ipsung Theory(立省論)` which insisted to establish a new Xingzhongshusheng (行中書省) in Goryo.
In sum, Chungseonwang intended to make Goryo a strong country like old Goguryo. But he depended on Yuan rather than Goryo`s own national strength to achieve the goal, and he could not overcome the fundamental problems. Rather his stance brought a political dispute between the King of Goryo and the King of Shenwang, resulting in weakening of Goryo`s power and status and deepening of the dependence on Yuan Dynasty. Goryo`s attempt to put Liaodong under Goryo`s territory resumed at the time of Kognminwang(恭愍王) and Wuwang(禹王).