Chŏng Yakchong
Chŏng Yakchong (1760 – April 8, 1801), also known as Augustine Chong, was a Korean Catholic martyr who contributed greatly to the spread of Catholicism in Korea. He was the older brother of Chŏng Yagyong and the father of Paul Chong Hasang.
He wrote the first Catholic catechism using only Korean letters so that he could reach out to the common people as well as the nobles who were the only ones in Korean society who could read Chinese characters. He was first converted to Catholicism himself by the Chinese priest Chou Wen-Mu.
In the Martyrology
- April 8 Blesseds Augustinus Jeong Yak-jong (정약종 아우구스티노 / 丁若鍾) and 4 companions, 124 Martyrs of Korea