 In 937, Xu Zhigao, then regent, had Wu's emperor Yang Pu yield the throne to him, ending Wu and starting a new state of Southern Tang.While Xu Jingda's older brothers Xu Jingtong (whose name was then changed to Xu Jing) and Xu Jingsui were given princely titles later that year, Xu Jingda initially was not, but was only given the title of Duke of Shouyang.