阮淦
This period marked the end of the second or Later Lê dynasty which had flourished for 100 years from 1428 to 1527 until a high-ranking mandarin Mạc Đăng Dung stole the throne of emperor Lê Cung Hoàng in 1527 and established the Mạc dynasty, ruling the whole territory of Đại Việt. The Lê royalists escaped to the Kingdom of Lan Xang (today Laos). The Right Commander-General of the Five Armies and Marquess of An Thanh (Vietnamese: Hữu vệ Điện tiền tướng quân An Thanh hầu) Nguyễn Kim summoned the people who were still loyal to the Lê emperor and formed a new army to begin a revolt against Mạc Đăng Dung. Subsequently, Nguyễn Kim returned to Đại Việt and led the Lê royalists in a six-year civil war before the Lê were able to capture territories in Thanh Hóa. This marked the beginning of the Southern and Northern dynasties era. The Lê and Mạc would continue the lengthy civil war over the next 40 years.