also List of Norwegian monarchs References Other sources Finlay, Alison, editor and translator, Fagrskinna, a Catalogue of the Kings of Norway (Brill Academic. 2004) Gathorne-Hardy, Geoffrey Malcolm, A royal impostor: King Sverre of Norway (London: Oxford University Press. 1956) Røsoch, Henry, Trondheim's History (Trondheim: F. Bruns Bokhandel. 1939) 1177 deaths Norwegian civil wars Pretenders to the Norwegian throne 12th-century murdered monarchs Year of birth unknown 12th-century Norwegian monarchs House of Gille Sons of kings