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.
Trần dynasty
The Trần dynasty (, 陳朝, "Trần triều") ruled in Vietnam (then known as Đại Việt) from 1225 to 1400. The dynasty was founded when emperor Trần Thái Tông ascended to the throne after his uncle Trần Thủ Độ orchestrated the overthrow of the Lý dynasty. The final emperor of the dynasty was Thiếu Đế, who at the age of five years was forced to abdicate the throne in favor of his maternal grandfather, Hồ Quý Ly. The Trần dynasty defeated three Mongol invasions, most notably in the decisive Battle of Bạch Đằng River in 1288.