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 Thiếu Đế
Trần Thiếu Đế (, 1396 - 1400), was the twelfth and the last emperor of the Trần dynasty who reigned over Vietnam from 1398 to 1400.
Trần Thiếu Đế's name (𤇼 / Yên) was suggested by "Khâm định Việt sử thông giám cương mục", because Nguyễn dynasty's officials could not find the exact Chinese character for this sovereign (). At the age of only three, he was chosen to succeed his father Trần Thuận Tông who was forced by Hồ Quý Ly to resign and hold the title Retired Emperor. Only two years after Thiếu Đế's coronation, Hồ Quý Ly overthrew the Emperor to establish his own dynasty, the Hồ Dynasty.
Thiếu Đế ("Young Emperor") was born in 1396 as Trần Yên (陳), first child of the Emperor Trần Thuận Tông, and his wife, the Queen Thánh Ngâu who was daughter of Hồ Quý Ly. On March 15 of the Lunar calendar, 1398, under pressure of Hồ Quý Ly, Thuận Tông had to cede the throne to his three-year-old son, now Trần Thiếu Đế, and held the position of retired emperor.