Over the years, Li Bian had been tempted to make Li Jingda, whom he considered decisive and capable, his heir, and Song had also often praised Li Jingda's abilities.
Selama bertahun-tahun, Li Bian tergoda untuk menjadikan Li Jingda, yang dianggapnya sangat menentukan dan cakap, ahli warisnya, dan Song juga sering memuji kemampuan Li Jingda.