渤海 大彝震代 對外交涉의 전개 과정과 의의

Abstract

Daeijin(大彝震), the 11th king of Balhae, conducted foreign negotiations with neighboring countries from the beginning of his accession. He appointed the prince class, such as Daemyungjun(大明俊), as the representative of the delegation and also dispatched international students to introduce the advanced culture of Tang. This was intended to establish a political system based on the legislative system. At the same time, it attempted to increase its control over Malgal by expanding its trade network through negotiations with the Military Gervenor(藩鎭). This aspect can also be seen in negotiations with Japan. Daeijin negotiated with Japan in 841 and 848. In particular, a practical negotiation document called the ’Jungdaesung-Cheob(中臺省牒)’ was issued, and the Japanese government delivered the ‘Taejeonggwan-Cheob(太政官牒)’ to Balhae. Since then, ‘Sovereign’s message’ and ‘Cheob’ have been continuously exchanged between Balhae and Japan, which can be seen as a typical form of negotiation in the 9th century. What is noteworthy during this period is that the number of people who participated in negotiations more than once increased rapidly, and the status of the Malgal suryong has declined. Like negotiations with Tang, it originated from Daeijin’s diplomatic policy, which sought to strengthen his support base and control over Malgal while reorganizing the negotiation system. The background of Daeijin’s negotiation was that Balhae’s royal lineage changed due to the accession of King Seon. As the royal lineage was replaced, he had to strengthen his royal authority, and he tried to establish a support base through foreign negotiations. Since the middle of the 9th century, foreign negotiations during the period of Daeijin have had a lot of influence, ①the establishment of the king’s support base ②the continuous dispatch of international students to the Tang, ③the system of negotiations with Japan through the exchange of negotiation documents.