The Battle of Aclea occurred in 851 between the

West Saxons la, Regnum Occidentalium Saxonum , conventional_long_name = Kingdom of the West Saxons , common_name = Wessex , image_map = Southern British Isles 9th century.svg , map_caption = S ...

led by Æthelwulf, King of Wessex and the

Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish ance ...

Vikings Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded and se ...

at an unknown location in

Surrey Surrey () is a ceremonial and non-metropolitan county in South East England, bordering Greater London to the south west. Surrey has a large rural area, and several significant urban areas which form part of the Greater London Built-up Area. ...

. It resulted in a West Saxon victory. Little is known about the battle and the most important source of information comes from the ''

Anglo-Saxon Chronicle The ''Anglo-Saxon Chronicle'' is a collection of annals in Old English, chronicling the history of the Anglo-Saxons. The original manuscript of the ''Chronicle'' was created late in the 9th century, probably in Wessex, during the reign of Alf ...

'' which recorded that: :three and a half hundred ships came into the mouth of the

Thames The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after the R ...

and stormed

Canterbury Canterbury (, ) is a City status in the United Kingdom, cathedral city and UNESCO World Heritage Site, situated in the heart of the City of Canterbury local government district of Kent, England. It lies on the River Stour, Kent, River Stour. ...

and

London London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a majo ...

and put to flight

Beorhtwulf Beorhtwulf (, meaning "bright wolf"; also spelled ''Berhtwulf''; died 852) was King of Mercia, a kingdom of Anglo-Saxon England, from 839 or 840 to 852. His ancestry is unknown, though he may have been connected to Beornwulf, who ruled Mercia ...

, King of Mercia with his army, and then went south over the Thames into Surrey and King Æthelwulf and his son Æthelbald with the West Saxon army fought against them at Aclea, and there made the greatest slaughter of a heathen raiding-army that we have heard tell of up to the present day, and there took the victory." Aclea means Oak Field, as

Asser Asser (; ; died 909) was a Welsh monk from St David's, Dyfed, who became Bishop of Sherborne in the 890s. About 885 he was asked by Alfred the Great to leave St David's and join the circle of learned men whom Alfred was recruiting for his c ...

explained. This should survive as Oakley and there are many examples of that name in England, but none survive in Surrey except possibly for

Ockley Common Ockley is a rural village in Surrey. It lies astride the A29, the modern road using the alignment of Stane Street (Chichester). The A29 diverges from the A24 from London about 2.5 miles northeast and takes the alignment of Stane Street a mile ...

near

Thursley Thursley is a village and civil parish in southwest Surrey, west of the A3 between Milford and Hindhead. An associated hamlet is Bowlhead Green. To the east is Brook. In the south of the parish rises the Greensand Ridge, in this section reachi ...

References

Aclea Aclea Aclea Aclea 851 9th century in England {{battle-stub