Emperor Ai of Tang
Li Zuo was born in 892, at the main palace at the Tang imperial capital Chang'an. His father Emperor Zhaozong was already emperor at that point, and he was Emperor Zhaozong's ninth son. His mother was Consort He, who had previously given birth to an older brother of his, Li Yu, Prince of De, who was Emperor Zhaozong's oldest son.
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.