Military officer killed at the Battle of Ssangnyeong in the Second Manchu Invasion (posthumous title Chungjang)

| Life | 1576 ~ 1636 |
| Era | 조선 중기 |
| Clan | 한산 이씨 |
Yi Ui-bae (李義培, 1576-1636) was a mid-Joseon military officer from Hansan, with courtesy name Uibaek (宜伯) and posthumous title Chungjang (忠壯). In a clan rich in civil officials, he is remembered as the military man who gave his life in the Second Manchu Invasion. Details of his birthplace and family were not confirmed in the sources used here.
He passed the military examination in 1599 (Seonjo 32), became a seonjeon-gwan and was then transferred to inspector (gamchal). His specific career between 1599 and 1635 was not confirmed here. In 1635 he took up his post as military commander of Gongcheong (Chungcheong).
The following year, at the outbreak of the Manchu war, he set up camp at Jukjusanseong and tried to attack the Qing army's rear, and he is said to have died in the Battle of Ssangnyeong in Gwangju in 1636 (lunar year). Ssangnyeong is known as the battle in which the Joseon relief forces coming to rescue Namhansanseong were heavily defeated by the Qing. After his death he was posthumously made Chief State Councillor and a memorial gate was erected in his hometown. His spirit-path stele stands in Yesan, South Chungcheong, and is designated South Chungcheong Cultural Heritage Material No. 186.
The Battle of Ssangnyeong is known as the fight in which the loyal forces trying to rescue Namhansanseong were heavily defeated by the Qing in the Manchu invasion. Among the largely civil-official figures of the Hansan Yi, Yi Ui-bae is a rare case of a military man who died for the country. His posthumous Chief State Councillor title, memorial gate and the stele in Yesan show the honor given by the court and the local community.
He passed the military examination in 1599, served as seonjeon-gwan and inspector, and took up the post of Chungcheong military commander in 1635.
He camped at Jukjusanseong aiming at the Qing rear and died in the Battle of Ssangnyeong in Gwangju.
The stele in Yesan, South Chungcheong, is Cultural Heritage Material No. 186. The photo of the Yesan Yi Ui-bae stele was released by the Academy of Korean Studies.
His spirit-path stele stands in Yesan, South Chungcheong, designated South Chungcheong Cultural Heritage Material No. 186.
Descendant relations were not confirmed here.