Jeong Mong-ju, also known by his pen name Poeun, was a Korean calligrapher, diplomat, philosopher, poet, and revolutionary. He was a major figure of opposition to the transition from the Goryeo dynasty to the Joseon dynasty. Wikipedia
Born: January 13, 1338, Yeongcheon-si, South Korea
Assassinated: April 26, 1392, Sonjuk Bridge
Descendants: Jeong Jong-sung, Jeong Jong-bon, Jeong Jong-hwa, and more
Parents: Jeong Woon-gwan