It was in this house that in 1735 Royal Lady Yeongbin Yi, one of the King Yeongjo’s secondary wives, gave birth to a prince who would later be Crown Prince Sado (1735-1762) and in 1790 a King Jeongjo’s secondary wife Royal Lady Subin Bak gave birth to his son who would grow to be King Sunjo (1800-1834). King Yeongjo was extremely pleased at the birth of Crown Prince Sado because he lost his first son due to an untimely death at the age of ten and had to wait seven more years until he became forty years of age to have his heir.