He killed the Lê emperor and proclaimed himself emperor, starting up the Mạc dynasty. After defeating lots of revolutions for two years, Mạc Đăng Dung adopted the Trần dynasty's observe and ceded the throne to his son, Mạc Đăng Doanh, and he became Thái Thượng Hoàng.The procedure for getting a visa for Vietnam may be confusing, bu