Lý Thánh Tông
Ỷ Lan (Hán tự: 倚蘭, literally "leaning on the orchid", ?–1117) or Empress Mother Linh Nhân (Vietnamese: "Linh Nhân thái hậu", Hán tự: 靈仁太后) was a Vietnamese regent, the imperial concubine of Lý Thánh Tông, the third emperor and the natural mother of Lý Nhân Tông, the fourth emperor of the Lý Dynasty. She served as regent during the absence of her spouse in 1066-68, and as co-regent during the reign of her son in 1073-1117.