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In page Yi Pongnam:

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Yi Pongnam (Korean: 이복남; Hanja: 李福男; June 28, 1555 – August 16, 1597) was a Korean naval commander and politician of the Joseon period. He passed the military examination and attained the position of Byeongmajeoldosa (병마절도사; 兵馬節度使) for Jeolla Province. He served against the Japanese navy during the Imjin war. His courtesy name was Subo (수보; 綏甫).[citation needed]