Emperor Ai of Tang
In 904, Zhu forced Emperor Zhaozong to move the capital from Chang'an to Luoyang, which was even more firmly under his control. Later that year, fearing that the adult Emperor Zhaozong would try to rise against him while he was away on campaigns against other warlords, he had Emperor Zhaozong assassinated. Bypassing Li Yu and the other older princes, he had an edict issued in Emperor Zhaozong's name creating Li Zuo crown prince and changing his name to Li Chu. Shortly after, Li Chu took the throne (as Emperor Ai). Empress He, who survived the assassination, was honored empress dowager.
Zhou Zong
Zhou Zong (周宗), courtesy name Juntai (君太), was an official of the Chinese Five Dynasties and Ten Kingdoms period state Southern Tang. Zhou was a close associate of its founding emperor Emperor Liezu and thus was honored by Emperor Liezu (Xu Zhigao/Li Bian) and his son and successor Emperor Yuanzong (Xu Jingtong/Li Jing). His two daughters became successive empresses (known as Empress Zhou the Greater and Empress Zhou the Lesser) for Emperor Yuanzong's son and successor, Southern Tang's final emperor Li Yu (often known as Li Houzhu).