His eldest brother Yak-hyeon (若鉉, 1751–1821) was the son of a first wife, while Jeong Yak-jong (若鍾, 1760–1801), Yak-jeon (若銓, 1758–1816), and Yak-yong were the sons of their father’s second wife, Suk-in (淑人, 1730–1770) from the Haenam Yun 尹 family.