Yelü Bei
Emperor Taizu died in 926. After his death, Empress Shulü diverted the succession away from Yelü Bei, to Yelü Deguang, who took the throne as Emperor Taizong. In 930, Emperor Taizong sent Yelü Lihu on an incursion into the territory of Khitan's southern neighbor Later Tang. Yelü Lihu attacked Later Tang's Huan Prefecture (寰州, in modern Shuozhou, Shanxi), and returned with many captives. Emperor Taizong thereafter created him crown prince and gave him the title of generalissimo of all armies. (This designation of Yelü Lihu as crown prince apparently aggravated Yelü Bei further, as it was later that year that Yelü Bei fled to Later Tang.) During Emperor Taizong's subsequent campaigns, Yelü Lihu was often put in charge of defending the capital Linhuang (臨潢, in modern Chifeng, Inner Mongolia).