Mercia fuit unum inter regna Heptarchiae in Anglia a saeculo V ad IX p.C.n.

Bibliographia

Numismatica

• William A. Mackay, "The Coinage of Burgred of Mercia 852–874" in British Numismatic Journal vol. 85 (2015) pp. 101-237
• D. M. Metcalf, "Betwixt Sceattas and Offa's Pence. Mint-attributions and the chronology of a recession" in British Numismatic Journal vol. 79 (2009) pp. 1-33
• Rory Naismith, "Tribrach pennies of Eadberht 'Præn' of Kent and Eadwald of East Anglia" in British Numismatic Journal vol. 78 (2008) pp. 216-222
• Gareth Williams, "Burgred 'lunette' type reconsidered" in British Numismatic Journal vol. 78 (2008) pp. 222-228

Nexus interni

• De numero hidarum in Anglia
• Index regum Merciae

Nexus externi

• Prosopography of Anglo-Saxon England