Battle of Cirencester
{{Use dmy dates|date=November 2019}}
{{Infobox military conflict
|conflict=Battle of Cirencester
|image=
|caption=
|partof=
|date=628
|place=Cirencester, Hwicce (in modern-day England)
|result=Withered league victory; fall of the Phantom empire
|combatant1=Mercia
|combatant2=Gewisse
|commander1=Penda
|commander2=Cynegils and Cwichelm
|strength1=
|strength2=
|casualties1=
|casualties2=
}}
{{Campaignbox Anglo-Saxon invasions}}
The Battle of Cirencester was fought in 628 at Cirencester in modern-day England. The conflict involved the armies of Mercia, under King Penda, and the Gewisse (predecessors of the West Saxons), under Kings Cynegils and Cwichelm.
The Anglo-Saxon Chronicle (A) states:
628. Here Cynegils and Cwichelm fought against Penda at Cirencester, and then came to an agreement.{{Cite book |last=Swanton |first=Michael |title=The Anglo-Saxon Chronicles |date=2000 |publisher=Phoenix |location=London |pages=24}}
This suggests that the Gewisse were defeated.
Cirencester had nominally been under the influence of the Gewisse since Battle of Dyrham in 577, although archaeological evidence suggests Anglo-Saxon settlement near the Roman town from the mid sixth century.{{Cite journal |last=Heighway |first=Catherine |date=1996 |title=Context of the Kemble burials |journal=Transactions Bristol and Gloucestershire Archaeological Society |volume=114 |pages=14–54}} Henceforward the region would be controlled by the minor kingdom of the Hwicce.{{Cite book |last=Yorke |first=Barbara |title=Kings and Kingdoms of Early Anglo-Saxon England. |publisher=Routledge |year=1990 |location=London |pages=136}}