Saya mau tau Lihat pula dari Æthelred dari Mercia

Kelly, S. E. "Osthryth (Ostrith) (d. 697), queen of the Mercians". Oxford Dictionary of National Biography. Oxford University Press, 2004. Retrieved 9 February 2015

Thacker, Alan, "St Wilfrid", in

Williams, Ann, Kingship and Government in Pre-Conquest England, c. 500–1066. Basingstoke: Macmillan, 1999.

Williams, Ann. "Æthelred (d. after 704)". Oxford Dictionary of National Biography. Oxford University Press, 2004. Retrieved 25 March 2008.

Yorke, Barbara, "The Origins of Mercia", in

Yorke, Barbara, Kings and Kingdoms in Early Anglo-Saxon England. London: Seaby, 1990.

Zaluckyj, Sarah, & Zaluckyj, John, "The Age of Mercian Supremacy", in