or UK public library membership required. Woolf, Alex, The Age of the Sea-Kings: 900–1300 in Omand, Donald (ed.) (2006) The Argyll Book, Birlinn, External links CELT: Corpus of Electronic Texts at University College Cork. The Corpus of Electronic Texts includes the Annals of Ulster and the Four Masters, the Chronicon Scotorum and the Book of Leinster as well as Genealogies, and various Saints' Lives. Most are translated into English, or translations are in progress. 877 deaths Monarchs of Jorvik 9th-century English monarchs 9th-century Irish monarchs Year of birth unknown Vikings killed in battle Viking rulers Monarchs killed in action 9th-century Vikings