In 2000, the Korean census recorded 379,708 members and 117,638 households within the Dang Hong lineage.
12-year-old Hong Eon-pil (홍언필, 洪彦弼; 1476-1549) served as Yeonguijeong during the reign of King Jungjong, and married the 6th great-granddaughter of Han Hwak, the father of Queen Sohye.
Hong Seom's daughter, Princess Consort Namyang (남양군부인 홍씨, 南陽郡夫人 洪氏; 1544-1569), married Prince Hawon who was the son of Grand Internal Prince Deokheung, father of King Seonjo.
Through Hong Eon-pil’s illegitimate daughter, he became the father-in-law to Queen Jeonghyeon’s nephew.
Hong Woo-won (홍우원, 洪宇遠), who was a government or administration official, was a member of the clan who fought for Crown Princess Minhoe’s injustice.