Son of Seo Hui; Munhasijung; his daughter became King Hyeonjong's sixth consort; posthumous title Gangyeong (later Wonsuk)
| Life | 1042 |
| Era | 고려 중기 |
| Clan | 이천 서씨 |
Seo Nul (d. 1042) was a mid-Goryeo official of the Icheon Seo clan and a son of Seo Hui. He placed first in the civil examination in 996, served as Jungseung (1016) and Vice-Minister of Punishments (1017), and went to Song as an envoy. After 1018 he held posts such as Vice-Minister of Personnel and Gukja-jwaeju, and in 1031 became Munhasijung via Geomgyo-taesa.
When his daughter became Lady Wonmok, King Hyeonjong's sixth consort, he was appointed to posts such as Jungchusa and Munha-sirang. Under King Jeongjong, as Pandobyeongmasa, he cited Khitan fortifications built east of the Amnok River and sent a memorial through an envoy proposing to break off peace talks, and the king followed his advice.
In 1041 he received a staff of honor and the rank of Jungdaegwang; in 1042, as his illness worsened, the king visited and posthumously granted Samjungdaegwang Naesaryeong and land for his heirs. His title was Gangyeong, changed to Wonsuk in 1086 to avoid a king's name. He was enshrined at Jeongjong's shrine, so Seo Pil, Seo Hui and Seo Nul were all so honored.
In Goryeo a 'baehyang gongsin' was a subject enshrined at a king's shrine after his death. Seo Pil (Gwangjong), Seo Hui (Seongjong) and Seo Nul (Jeongjong) were each so honored, a distinction long associated with the family.
The Icheon Seo are counted with the Incheon Yi, Haeju Choe and Namyang Hong as Goryeo's four great houses, and it is widely said that chief ministers came from seven generations, including Seo Pil, Seo Hui, Seo Nul, Seo Jeong, Seo Gyun, Seo Gong and Seo Sun.
Not confirmed in sources
His daughter Lady Wonmok became a consort of King Hyeonjong. Seo Jeong, listed as a grandson of Seo Hui, may be a son of Seo Nul, but check genealogies. See also the Icheon Seo clan page.