"Uncle-Nephew Rapport" Between Yuan Dynasty And Koryo, And Their Cultural Communications

"The Uncle- Nephew Rapport", mainly means marriage relation between Yuan Dynasty and Koryo. From Zhi Yuan 11th years of Yuan Dynasty ( Yuan Zong 15th years of Koryo,1274), when the prince of Koryo, Wang Zhan married a princess of Yuan Dynasty, two nations set up a strong and constant marriage realations formally.Henceforth,toally there were eight Yuan Dynasty's princesses marriaged to Koryo in Yuan Dynasty's history.Although there were no real relations of"uncle and nephew"between two nations,it is only a diplomacy title on two countries'more than 100 yearses friendly association history.So the authour wants to use the phrase of"The Uncle- Nephew Rapport", to discuss the marriage relations of two nations.The first half period of the 13th century,there was a conflict period between Koryo and Mongolia. Two nations were all suffered the miserable disaster in long-term war. In 1260 , Hu Bi Lie became the Mongolia emperor. two countries ended the opposition and war, and turned to establish the vassal state relations between two countries.The both parties entered a peaceful association period,from then on.For further making stronger peaceful and friendly relations between the two countries, they established the marriage relations of"The Uncle- Nephew Rapport".after the Zhong lie king(prince Wang Zhan ) of Koryo married princess of Qi Guo of Mongolia in 1274, two countries'marriage were continuous.During the Yuan Dynasty, there were total seven Koryo king ruled their nation, in addition to a king died youngly and another shortruling time king, five kings of rest were all still married Yuan Dynasty princesses,"The Uncle- Nephew Rapport"of two countries seemed to have already become the rules.