Geng Jingzhong
Wu in Yunnan, along with Shang Kexi in Guangdong and Geng Jingzhong in Fujian—the three great Han military allies of the Manchus, who had pursued the rebels and the Southern Ming pretenders—became a financial burden on the central government. Their virtually autonomous control of large areas threatened the stability of the Qing dynasty. The Kangxi Emperor decided to make Wu and two other princes who had been rewarded with large fiefs in southern and western China move from their lands to resettle in Manchuria. In 1673, Shang Kexi requested permission to retire and return to his homeland in the north, and the Kangxi Emperor granted the request at once. Forced into an awkward situation, Wu and Geng Jingzhong requested the same shortly afterwards. The Kangxi Emperor granted their requests and decided to dissolve the three vassal states, overriding all objections.