Lý Nhân Tông
Emperor Lý Thánh Tông died in 1072, the crown prince Càn Đức was enthroned at 7 as emperor Lý Nhân Tông. Empress Thượng Dương became regency but was toppled the next year by a plot by Lý Nhân Tông's mother, Concubine Ỷ Lan. She ordered the former Empress to be buried alive in the emperor's mausoleum along with 76 other servants. Ỷ Lan then became regency with help of Chancellor Lý Thường Kiệt.