고려말-조선초 대마도와의 통교 공백기 (1369~1397)의 배경 및 양상 －이마가와 료슌(今川了俊)의 대마도에 대한 영향력을 중심으로－ = The Backgrounds and Aspects of the Blank Period of Friendly Interactions with Tsushima in Late Koryo and Early Joseon Period (1369~1397): Focusing on Imagawa Ryoushun’s Influence on Tsushima

다국어 초록 (Multilingual Abstract)

The friendly interaction relation (通交關係) established in 1368 between the Koryo government and Tsushima broke off in less than one year. The state of no friendly interaction between Koryo-Joseon government and Tsushima, which is defined in this study as ‘Blank Period’, continued for about 30 years from 1369 to 1397. Up to today, the topic of the Blank Period has long been out of the main area of interest of scholars. However, this Blank Period is a very important topic, as it connected the Koryo-Tsushima interactions in 1368 and the Joseon-Tsushima friendly interactions having continued for several centuries since the start of the 15th century.
This study covers the backgrounds and aspects of the Blank Period mainly in the aspect of the influence of Imagawa Ryoushun (今川了俊), Kyushu Tandai (九州探題) at that time.
In the decade of 1370s, the Muromachi bakufu needed to achieve the three goals, which were in effect one same goal: (i) the establishment of diplomatic relation with Ming dynasty, (ii) the conquer of the Southern court in Kyushu, and (iii) the control of Wakou (倭寇 ; the Japanese marauders). The person who took the role in Kyushu for these goals was Imagawa Ryoushun. In fact, he tried his best for the goals of (ii) and (iii) above, achieving some tangible results. Based on such achievement, he held an unrivaled position in the diplomacy between Japan and Koryo- Joseon.
This study clarifies that, based on the delegated power from the Muromachi bakufu, Imagawa Ryoushun prohibited Japan’s local powers from communicating with Koryo, and that Tsushima was not able to communicate directly, nor to engage in any friendly interactions, with Koryo accordingly. In case that there occurred any issue between Koryo- Joseon and Tsushima, Imagawa Ryoushun prohibited Tsushima from contacting Koryo-Joseon directly, and instead consistently forwarded the bakufu’s strong will for the control against Wakou to the Koryo-Joseon government directly for himself. Such Ryoushun’s strong influence on Tsushima continued until 1395, in which he was removed from his post of Kyushu Tandai.
Up to today, the current prevalent view on the start of friendly interactions between Joseon and Tsushima has focused an economic aspect, emphasizing the economic ‘appeasement policy’ of the Joseon government. But, with respect to the background of the start and continuance of the Blank Period, Imagawa Ryoushun’s influence on Tsuchima had a great effect. Therefore, a comprehensive approach, covering various aspects including political and social aspects, as well as economic aspect, should be required in the study on the start and development of the friendly interactions between Joseon government and Tsushima.