The first husband of Trần Thị Dung, the former emperor Lý Huệ Tông, was killed in 1226 by order of Trần Thủ Độ, who afterwards married Trần Thị Dung, now Lady Linh Từ. During the troubled times of the Early Trần Dynasty with the revolt of Trần Liễu, son-in-law of Trần Thị Dung, and the first Mongol invasion of Đại Việt, she had a significant role in the reconciliation between Trần Thái Tông and his brother Trần Liễu, National Matriarch Linh Từ also had many activities to help the royal family during the Mongol invasion. After her death in 1259, Trần Thị Dung was posthumously entitled as National Matriarch Linh Từ (Linh Từ Quốc mẫu). Trần Thị Dung's complicated biography was a fine example for the complex period of the Late Lý and Early Trần Dynasty in History of Vietnam.