周德威
Shortly after becoming emperor, apparently intending to deal a crippling blow to Jin, Emperor Taizu sent Kang Huaizhen north to put Lu Prefecture, then under the command of Li Sizhao, under tight siege; he later went to Lu himself to reinforce the siege. Li Keyong initially sent Zhou Dewei to try to lift the siege, but was unable to do so. In spring 908, Li Keyong himself fell deathly ill, forcing Zhou to withdraw back to Taiyuan. Li Keyong died shortly after and was succeeded by his son Li Cunxu. Emperor Taizu, believing that Lu would fall easily in the aftermaths, not only withdrew himself but also withdrew part of the siege army, under the command of Liu Zhijun, to guard against a potential Qi attack. Li Cunxu, realizing that the Later Liang army had been weakened, launched a surprise assault on the Later Liang army sieging Lu, crushing it and lifting the siege, thus stabilizing the security of the Jin state. When Emperor Taizu received news of the death, he lamented: