action against Roman Catholic activities in the country. By the 18th century, Catholicism was beginning to acquire a following especially in the Gangwon and Hwanghae provinces. In 1758, Yeongjo officially outlawed Catholicism as an evil practice. Death Fourteen years after Crown Prince Sado's death, his son and Yeongjo's grandson, Yi San (posthumously King Jeongjo), became King. The early part of the new King's years were marked by political intrigues and fear of court officials who were afraid that he would seek revenge on them for petitioning the punishment that caused the death of his father, Crown Prince Sado. Yeongjo is buried with his second wife, Queen Jeongsun, in the royal tomb of Wonneung (원릉, 元陵) in Guri, Gyeonggi Province. Family Father: King Sukjong of Joseon (조선 숙종) (7 October 1661 – 12 July 1720) Grandfather: King Hyeonjong of Joseon (조선 현종) (14 March 1641 – 17 September 1674) Grandmother: Queen Myeongseong of the Cheongpung Kim clan (명성왕후 김씨) (13 June 1642 – 21 January 1684) Biological mother: Royal Noble Consort Suk of the Haeju Choe clan (숙빈 최씨) (17 December 1670 – 9 April 1718) Grandfather: Choe Hyo-won (최효원) (23 February 1638 – 15 August 1672) Grandmother: Lady Hong of the Namyang Hong clan (남양 홍씨) (1639 – 1673) Adoptive mother: Queen Inwon of the Gyeongju Kim clan (인원왕후 김씨) (3 November 1687 – 13 May 1757) Consorts and their respective issue(s): Queen Jeongseong of the Daegu Seo clan (정성왕후 서씨) (12 January 1693 – 3 April 1757) — No issue. Queen Jeongsun of the Gyeongju Kim clan (정순왕후 김씨) (2 December 1745 – 11 February 1805) — No issue. Royal Noble Consort Jeong of the Hamyang Yi clan (정빈 이씨) (1694 – 16 November 1721) Princess Hwaeok (화억옹주) (22 April 1717 – 8 April 1718), first daughter Yi Haeng, Crown Prince Hyojang (효장세자 이행) (4 April 1719 – 16 December 1728), first son Princess Hwasun (화순옹주) (8 March 1720 – 17 January 1758), second daughter Royal Noble Consort Yeong of the Jeonui Yi clan (영빈 이씨) (15 August 1696 – 23 August 1764) Princess Hwapyong (화평옹주) (27 April 1727 – 24 June 1748), third daughter Fourth daughter (3 August 1728 – 18 February 1731) Fifth daughter (12 December 1729 – 21 March 1731) Six daughter (1 January 1732 – 12 April 1736) Princess Hwahyeop (화협옹주) (7 March 1733 – 27 November 1752), seventh daughter Yi Seon, Crown Prince Sado