Dasan Jeong Yak-yong and His Three Brothers

Eldest brother Jeong Yak-jeon, born 1758, Andrea
Second brother Jeong Yak-jong, born 1760, Augustinus
Youngest brother Jeong Yak-yong, born 1762, Johannes
They were all two years apart.
After King Jeongjo died in 1800, Queen Dowager Jeongsun, the second wife of King Yeongjo, began
ruling from behind the scenes on behalf of the 10-year-old King Sunjo,
allowing the Noron faction to regain power.
Queen Jeongsun and the Noron faction overturned King Jeongjo's inclusive religious policies
and immediately began persecuting Catholicism, known as the Sinyu Persecution of 1801.
Since many of the Noron faction's political rivals were Catholics, this served a dual purpose.
Over 300 people, including Lee Ga-hwan, the leader of the Namin faction and a Joseon genius, were beheaded,
and thousands more were sent into exile.
The irony is that even though Lee Ga-hwan was not a Catholic,
he was branded a Catholic simply because he was the leader of the Namin faction.
The second brother, Jeong Yak-jong, refused to apostatize until the end and was beheaded.
The eldest brother, Jeong Yak-jeon, and the youngest, Jeong Yak-yong, signed oaths of apostasy,
received flogging, and were sent into exile.
Jeong Yak-jeon moved between islands such as Sinjido, Uido, and Heuksando,
eventually passing away on Uido in 1816.
Jeong Yak-yong lived in exile in Gangjin for 18 years before being released.