ギルス・ゴドウィンソン
Barlow, Frank, ed. Vita Ædwardi
DeVries, Kell (1999). The Norwegian Invasion of England in 1066. Boydell Press. p. 108–114. ISBN 1-84383-027-2
Gravett, Christopher (1992). Hastings 1066: The Fall of Saxon England. Campaign. 13. Oxford, UK: Osprey. ISBN 978-1-84176-133-6