Zhou Wenmo (1752–1801): The first missionary priest to be dispatched to Chosun. Born in Suzhou, China in 1752, he lost his parents early in life and were raised by his grandmother. He entered Catholic by himself and became a priest as one of the first graduates at Beijing Archdiocese seminary. At that time, Bishop Gouvea in Beijing was planning to send a clergy to Chosun. He chose Father Ju, who had a strong faith and looked similar to Chosun people. After leaving Beijing in February 1794, Father Ju waited at Yodong area until the Amnokgang River froze enough to cross across. On the appointed date, he went to a town located on the border between China and Chosun to meet secret envoys sent from Chosun and entered Chosun on the night of December 24. Since then, Father Ju stayed at the house of a faithful to learn Hangul, the Korean alphabets. On Easter of 1795, he held a mass with the faithful for the first time. However, after his entry was revealed, he escaped to female President Kang Wan Sook (Colomba)'s house and continued to pray in many areas in secrecy. The number of the faithful increased to 10,000 after six years but as the Catholic Persecution of 1801 occurred and the faithful were forced to confess the location of Father Ju, he decided to surrender on March 11 of that year. On May 31, Father Ju was decapitated at Saenamteo area near Han River at the age of 49. Yun Yoo Il Paul (1760–1795): A secret envoy from Beijing who helped missionary to enter Chosun. He was born in Yeoju, Kyungki-do in 1760. After moving to Yanggeun, he encountered Catholic while studying under Kwon Chul Shin. He learned Catholic doctrine from Kwon Il Shin, the younger brother of Kwon Chul Shin, and entered into Catholic. He then preached the doctrine to his family. In 1789, Yun Yoo Il was selected as a secret envoy by the church leaders to report the situation of Chosun church to Bishop Gouvea. Thus, he went to Beijing two times: in 1789 and in 1790. In 1791, Bishop Gouvea's plan to dispatch a priest failed and persecution took place in Chosun. Nonetheless, Yun Yoo Il continued to endeavor to dispatch a priest. In 1794, he finally succeeded in bringing Father Ju Mun Mo to Chosun. Since then, he was responsible for keeping in contact