Lagertha, according to legend, was a Viking ruler and shield-maiden from what is now Norway, and the onetime wife of the famous Viking Ragnar Lodbrok. Her tale was recorded by the chronicler Saxo in the 12th century. According to the historian Judith Jesch, Saxo's tales about warrior women are largely fictional; other historians wrote that they may have a basis in tales about the Norse deity Thorgerd.
Her name as recorded by Saxo is Lathgertha. It has also been recorded as Lagertha, Ladgertha, Ladgerda or similar.[1]