李惠宗
Being ill for a long time, Lý Huệ Tông ultimately decided to cede the throne to his youngest daughter, the Princess Chiêu Thánh, now the Empress Regnant Lý Chiêu Hoàng in December 1224 and Trần Thị Dung thus became the Empress Mother of the Lý Dynasty. Chiêu Hoàng was only six at that time so every important decisions in royal court were made by Trần clan, profiting this circumstance, general of royal guard Trần Thủ Độ, who was Trần Thị Dung's cousin, arranged a marriage between Chiêu Hoàng and Trần Cảnh, the eight-year-old son of Trần Thừa and nephew of Trần Thị Dung. With Trần Cảnh being the Empress's husband, Trần Thủ Độ was finally able to overthrow the Lý Dynasty by making Lý Chiêu Hoàng pass the throne to Trần Cảnh, now Trần Thái Tông, in 1225. After the coronation of Trần Cảnh, Lý Chiêu Hoàng was demoted to Empress Chiêu Thánh (Chiêu Thánh công chúa) and his mother to Princess Thiên Cực (Thiên Cực công chúa).