Ly dynasty and Tran dynasty

The Lý dynasty (Vietnamese: Nhà Lý, Vietnamese pronunciation: [ɲâː lǐ], chữ Nôm: 茹李, chữ Hán: 朝李, Vietnamese: triều Lý, Chinese characters: 李朝), officially Đại Cồ Việt (chữ Hán: 大瞿越) from 1009 to 1054 and Đại Việt (chữ Hán: 大越) from 1054 to 1225, was a Vietnamese dynasty that existed from 1009 to 1225. It was established by Lý Công Uẩn when he overthrew the Anterior Lê dynasty. The dynasty ended when empress regnant Lý Chiêu Hoàng (then 8 years old) was pressured to abdicate the throne in favor of her husband, Trần Cảnh in 1225, the dynasty lasted for 216 years. During Lý Thánh Tông's reign, the official name of the state was changed from Đại Cồ Việt to Đại Việt, a name that would remain Vietnam's official name until the onset of the 19th century.

The Trần dynasty (Vietnamese: Nhà Trần, chữ Nôm: 茹陳; Vietnamese: triều Trần, chữ Hán: 朝陳, Chinese characters: 陳朝) was a Vietnamese dynasty that ruled Đại Việt (Chữ Hán: 大越) from 1225 to 1400. The dynasty was founded when emperor Trần Thái Tông ascended to the throne after his uncle Trần Thủ Độ orchestrated the overthrow of the Lý dynasty. The Trần dynasty defeated three Mongol invasions, most notably during the decisive Battle of Bạch Đằng River in 1288. During its final decades, several succession crises and invasions from Champa severely weakened the dynasty. In 1398, emperor Trần Thuận Tông was forced to cede the throne to his three-year-old son Thiếu Đế, who in turn was forced to abdicate in 1400 in favor of the minister Hồ Quý Ly.