Ryan 2013, hlm. 301. Ryan, Martin J. (2013). "Conquest, Reform and the Making of England". Dalam Higham, Nicholas J.; Ryan, Martin J. The Anglo-Saxon World. New Haven, Connecticut: Yale University Press. hlm. 284–322. ISBN978-0-300-12534-4.
Thacker 2014, hlm. 105; Meijns 2010, hlm. 473–476; Thacker 2001, hlm. 256. Thacker, Alan (2014). "Chester". Dalam Lapidge, Michael; Blair, John; Keynes, Simon; Scragg, Donald. The Wiley Blackwell Encyclopaedia of Anglo-Saxon England (edisi ke-2nd). Chichester, UK: Wiley Blackwell. hlm. 104–106. ISBN978-0-631-22492-1.Meijns, Brigitte (2010). "The Policy on Relic Translations of Baldwin II of Flanders (879–918), Edward of Wessex (899–924), and Æthelflæd of Mercia (d. 924): A Key to Anglo-Flemish Relations". Dalam Rollason, David; Leyser, Conrad; Williams, Hannah. England and the Continent in the Tenth Century. Turnhout, Belgium: Brepols. hlm. 473–492. ISBN978-2-503-53208-0. Thacker, Alan (2001). "Dynastic Monasteries and Family Cults". Dalam Higham, N. J.; Hill, D. H. Edward the Elder 899–924. Abingdon, UK: Routledge. hlm. 248–263. ISBN978-0-415-21497-1.
Ryan 2013, hlm. 298. Ryan, Martin J. (2013). "Conquest, Reform and the Making of England". Dalam Higham, Nicholas J.; Ryan, Martin J. The Anglo-Saxon World. New Haven, Connecticut: Yale University Press. hlm. 284–322. ISBN978-0-300-12534-4.
Thacker 1985, hlm. 5; Charter S 221. Thacker, Alan (1985). "Kings, Saints and Monasteries in Pre-Viking Mercia". Midland History. X: 1–25. doi:10.1179/mdh.1985.10.1.1. ISSN1756-381X."Charter S 221". The Electronic Sawyer: Online Catalogue of Anglo-Saxon Charters. London, UK: King's College London. Diakses tanggal 15 September 2016.
Thacker 1985, hlm. 5; Charter S 221. Thacker, Alan (1985). "Kings, Saints and Monasteries in Pre-Viking Mercia". Midland History. X: 1–25. doi:10.1179/mdh.1985.10.1.1. ISSN1756-381X."Charter S 221". The Electronic Sawyer: Online Catalogue of Anglo-Saxon Charters. London, UK: King's College London. Diakses tanggal 15 September 2016.
Thacker 1985, hlm. 5; Charter S 221. Thacker, Alan (1985). "Kings, Saints and Monasteries in Pre-Viking Mercia". Midland History. X: 1–25. doi:10.1179/mdh.1985.10.1.1. ISSN1756-381X."Charter S 221". The Electronic Sawyer: Online Catalogue of Anglo-Saxon Charters. London, UK: King's College London. Diakses tanggal 15 September 2016.