origin : https://en.wikipedia.org/wiki/Han_Seok-bong
Han Seok-bong was a leading mid-Joseon period calligrapher. He composed calligraphy for the royal court of Korea.
Born in Songdo in the early sixteenth century,[1] in the reign of King Jungjong, Han became a master calligrapher and the primary transcriber for the next king of Joseon, Seonjo. During his lifetime, his fame for calligrapher spread through all the land and even to China.[2] One of his famous works is the Dosan-Seowon.