Chungcheong-do 

Chungcheong  was one of the eight provinces of Korea during the Joseon Dynasty. Chungcheong was located in the southwest of Korea. The provincial capital was located at Gongju, which had been the capital of the kingdom of Baekje from 475 to 538.

 Its name derived from the names of the principal cities of Chungju (충주; 忠州) and Cheongju (청주; 淸州).

Historic Chungcheong was bordered on the north by Gyeonggi Province, on the north east by Gangwon, the east by Gyeongsang Provinces, on the south by North Jeolla Province, and on the west by the Yellow Sea. The region is mountainous in the east (the North province) and somewhat lower and flatter in the west (the South province).

The regional name for Chungcheong is Hoseo (호서; 湖西), although this name is used less than the current administrative name.