Trùng Quang Emperor (Vietnamese: Trùng Quang Đế, Hán tự: 重光帝, ?–1414), real name Trần Quý Khoáng (陳季擴), was the second and last emperor of Later Trần dynasty. He was a son of prince Trần Ngạc. As the second son of Trần Nghệ Tông, Ngạc was appointed as Prime Minister with the title Trang Định vương (莊定王, "Prince Trang Định"), but was later killed by an order of Co-Prime Minister Hồ Quý Ly in 1392.
|Trùng Quang Đế|
|Emperor of Đại Việt|
|Emperor of Later Trần Dynasty|
|Reign||17 March 1409 – 31 March 1413 (4 years, 14 days)|
|Predecessor||Giản Định Đế|
|Successor||surrendered to Ming China|
|Died||14 April 1414|
|House||Later Trần Dynasty|
|Father||Trần Ngạc, Prince Trang Định|
Giản Định revolted against Ming China in September 1408. Trùng Quang was appointed as a Palace Attendant (thị trung 侍中). In the next year, he was installed as the new emperor by Đặng Dung and Nguyễn Cảnh Dị in Chi La (modern Đức Thọ District, Hà Tĩnh Province). Giản Định was arrested by Nguyễn Suý, a general of Trùng Quang, then transferred to Nghệ An Province. Trùng Quang granted him the title thái thượng hoàng ("Retired Emperor").
Trùng Quang came to Bình Than to fight against the Chinese army, but was defeated by Zhang Fu and fled back to Nghệ An. He was captured in Hoá châu by Chinese army together with his generals around 1413, and was transferred to China. He drowned himself on the way to Yanjing (modern Beijing) in the next year.
- Trần Trọng Kim (2005). Việt Nam sử lược (in Vietnamese). Ho Chi Minh City: Ho Chi Minh City General Publishing House.