They were apparently pretty good commanders themselves as they took over for their father in the last battle when he died
Fate settled them in various way, but non had tarnished his name. Firstborn Yi Hoei, who led fleet as Yi sun shin's stead in battle of Noryang, served as a civil governer, then he honored posthumously as kings secretary. His sons and grandsons honoured Admiral Yi and many of them served Joseon dynasty as military officers. Second son, Yi Yeol's higest rank was a civil officer in department of law and justice. Third son, Yi Myeon was killed in Imjin war and since Myeon was single in that time, he has no descendants. Yi's two other son who were born from Yi's mistress, Yi Hoon and Yi Shin served as military officer and they were killed in action in early half of 17th century. According to Yi's biography written by Yi Bun(one of Yi's nephew), Yi Hoon killed while suppressing rebellion, Yi Shin lost his life in first invasion of Qing dynasty(1627). Lastly, there was Yi Wan, who led battle of Noryang with his cousin. He also killed in action while serving as civil and military governor in Uiju, northwestern border city that was important trade&military center, since it located on southern bank of Yalu(Abrok in Korean) river where the river meet with Yellow sea. In december of 1636, Manchurian army invaded Joseon again, and Yi Wan had to fight them headfirst. He fought bravely, but his army was too small to defeat enemy. He fought till last, and when all hope were forlorn, he lured several Qing soldiers into armory and set fire on gunpowder.