Lord of Namwon, posthumous Left Chancellor, father of Yang Seong-ji
| Life | 미상 ~ 미상 |
| Era | 조선 전기 |
| Clan | 남원 양씨 |
Yang Gu-ju (梁九疇) belonged to the Byeongbugong branch of the Namwon Yang clan. He was a grandson of Yang U (Mukjae), was enfeoffed as Lord of Namwon and was posthumously named Left Chancellor. This is confirmed by the Busan history and culture encyclopedia and Urihistory.net.
His second son was the early Joseon scholar Yang Seong-ji. Yang Seong-ji served as Inspector-General and Chief Scholar of Hongmungwan and founded the Munyanggong branch, a sub-branch of the Byeongbugong branch.
His dates, the details of his career and his burial site could not be confirmed.
The line runs Yang U → (son) → Yang Gu-ju → Yang Seong-ji. The name of the generation between Yang U and Yang Gu-ju could not be confirmed. Yang Seong-ji was Yang Gu-ju's second son.
Not confirmed.
His second son Yang Seong-ji founded the Munyanggong branch, and Yang Heon-su was Yang Seong-ji's 13th-generation descendant.