Build the 성주 이씨 family tree online

성주 이씨(星州 李氏) — The founding ancestor is said to be Yi Sun-yu, who served as a chief minister in the late Silla period, and the clan is known for producing figures such as the late-Goryeo civil official Yi Jo-nyeon.

About the 성주 이씨 clan

The founding ancestor is said to be Yi Sun-yu, who served as a chief minister in the late Silla period, and the clan is known for producing figures such as the late-Goryeo civil official Yi Jo-nyeon. In the 2015 Census the 성주 이씨 clan numbered about 203,703 people, one of Korea's major surnames and clans. Even among people surnamed 이, a different clan seat (bon-gwan, 성주) means a different lineage. New to these terms? See the bon-gwan, pa & hangnyeol guide.

Main branches (派)

Miljik-gong branch, Chamji-gong branch, Sijung-gong branch, Yusu-gong branch, Munyeol-gong branch

Branch divisions vary by lineage and jokbo; confirm your own branch in your family's records.

Notable figures

이조년(Goryeo civil official), 이인임(powerful Goryeo statesman), 이숭인(one of the Three Eun of late Goryeo)

Tap a name for the full profile (life, career, grave, descendants).

How to build your 성주 이씨 tree

1. Start with yourself — sign in to get your own tree. Enter your name, birth year and clan seat (성주).
2. Add older generations — add parents and grandparents. For accuracy see tracing ancestors with jejeok records (usually to about 5 generations).
3. Link siblings & children — sort by generational name (hangnyeol) to see each generation at a glance.
4. Export & share — save the finished tree as a PDF and invite family to manage it together.

Related reading

성주 이씨 clan association

🔗 성주이씨대종회

For other branch associations, see the Korean E-Jokbo Library clan-association directory.