Battle of Derby

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Battle of Derby
Part of the Viking invasions of England
Derby UK locator map.svg
Derby shown within Derbyshire and England
DateJuly 917 AD
Result Anglo-Saxon victory
Anglo-Saxons Danelaw Vikings
Commanders and leaders
Aethelflaed Unknown
Unknown Unknown
Casualties and losses
Unknown Unknown

In July 917, Aethelflaed launched her first offensive foray and selected the fortress at Derby as her target. At that time the local ruler had probably joined with the armies from Northampton and Leicester in a number of raids to attack Mercia.[1][page needed] Aethelfled took advantage of the weakened burh and successfully assaulted the town in July 917; the whole region subsequently being annexed into English Mercia.

The Danes may well have established their military headquarters on the former Roman fort of Derventio.[2] This 6-acre (24,000 m2)[3] rectangular fort would have given the burh the equivalent of c. 500 hides. The Vikings had camped at nearby Repton in 874, and had abandoned it a year later after suffering significantly from disease during their stay (leading to the discovery of a grave containing 245 bodies).[4][page needed]


  1. ^ Walker, Ian W (2000). Mercia and the Making of England, Sutton
  2. ^ Fellows-Jensen, Gillian (1994) The Vikings and their Victims: The Verdict of the Names" Viking Society ISBN 0-903521-39-3 p19
  3. ^ British History Online: Antiquities, Derbyshire. Retrieved on 15 January 2008.
  4. ^ Walker, Ian W (2000). Mercia and the Making of England, Sutton