 In 1729, the Yongzheng Emperor split the Viceroy of Rivers and Waterways into the Viceroy of Southern Rivers based in Qingjiangpu, and the Viceroy of Eastern Rivers based in Jining.In the following year, he created the Viceroy of Northern Rivers, which was then concurrently held by the Viceroy of Zhili.The Viceroy of Southern Rivers oversaw a total of four circuits, 24 subprefectures and 24 battalions of military forces.