Viceroy of Liangguang
During the Ming dynasty, the post of "zongdu" was originally an ad hoc appointment for military inspectors, especially along the northern border. As a temporary appointment, it had no fixed rank within the nine-rank system. It was during the Chenghua era, in 1469, that the Viceroy of Liangguang first became a regular appointment; subsequently the post gained civilian powers too, effectively uniting civil and military control in the provinces.