Emperor Wu of Northern Zhou
Emperor Wu of Northern Zhou had long wanted to destroy Northern Qi, and he launched a major attack in fall 575. Several of his generals suggested attacking Jinyang, but he instead attacked Luoyang. However, when he laid siege to the fortress Zhongtan (second character not in Unicode), it was well-defended by the Northern Qi general Fu Fu (傅伏), and Emperor Wu became ill during the siege and withdrew. During the meantime, however, Chen forces, commanded by Wu, commenced a new attack, putting Pengcheng (彭城, in modern Xuzhou, Jiangsu) under siege. (For the rest of Northern Qi's existence, however, Wu would not be able to actually capture Pengcheng.)