吴王
Zhang had significantly expanded his domain by 1363, when he declared himself the King of Wu (吴王, "Wu Wang"), possibly following the example of his main rival, the Nanjing-based Zhu Yuanzhang, who had earlier (1361) made himself the Duke of Wu (吴公, "Wu Gong"). Not to be outdone, in 1364 Zhu promoted himself to a King ("Wang") of Wu