河東郡 治所 移動과 鄭晏峯山城

Abstract

A preliminary excavation, carried out in order to investigate the connection between Jeongan and Jeongan-bong mountain fortress, discovered a stone fortress of the Silla dynasty that preceded Jeongan’s lifetime. This essay goes through the construction background of the fortress as well as its connection to Jeongan by analyzing the movement tracts of Hadong County’s local administration in the historical records and the result of the preliminary excavation. In addition, this essay examines local administrations in the Silla and the Gorye dynasties with archeological methods using relics and artifacts at the time. In the case of Hadong County, it is difficult to distinguish which country built the fortress. However, there is a possibility that the fortification was a work of either the Gaya or the Baekje dynasty. According to the The Chronicles of the Three States, the organization of the Handasa County(an old name for Hadong County) started in the period of King Sinmun and King Kyungdeok of the Silla. In addition, a preliminary excavation in Goso fortress in Akyan near Hadong County confirmed that the characteristics of the construction method and excavated artifacts were related to the local administration in Akyang. Therefore, there is a high possibility that the existence of the local administration and its fortress somewhere around Hadong County. According to the surface investigation into fortresses within Hadong County, it is assumed that eight ancient mountain fortresses were built within this area in the period between the Three Kingdoms and the Gorye. These fortresses had mixture characteristics of various periods and functioned as a local administrative fortress and a fortification. Therefore, Jeongan-bong mountain fortress was built for the purpose of a military base functioning as a local administration as well as a fortification. However, there were two the characteristics of a local administrative fortress built in between the end of the Unified Silla and the early Gorye dynasty. First, it was a period when most local administrative fortresses had been moved from the mountain to the plain or plateau. Second, they were earthen fortresses rather than stone fortresses. Therefore, it is difficult to confirm the connection between Jeongan-bong mountain fortress and a local administrative fortress of Hadong County in the Gorye dynasty. Rather, judging from the evidences of reconstructions during the Gorye dynasty, it is good possibility that Jeongan had once used to live in the Jeongan-bong mountain fortress after his retirement. Of eight mountain fortresses, Jeongan-bong mountain fortress was built for the purpose of a military base functioning as a local administration as well as a fortification. The construction date of this fortress went back to the Silla dynasty because its construction method called range works contained similarities suggest possibilities to estimate its foundation, dating back to the Silla dynasty.