Cynegils

thumb|upright=1.2|Map of British peoples c. 600

Cynegils () was King of Wessex from c. 611 to c. 642. Cynegils is traditionally considered to have been King of Wessex, even though the kingdoms of the Heptarchy had not yet formed from the patchwork of smaller kingdoms in his lifetime. The later kingdom of Wessex was centred on the counties of Hampshire, Dorset, Somerset and Wiltshire but the evidence of the Anglo-Saxon Chronicle is that the kingdom of Cynegils was located on the upper River Thames, extending into northern Wiltshire and Somerset, southern Gloucestershire and Oxfordshire, and western Berkshire, with Dorchester-on-Thames as one of the major royal sites. This region, probably connected to the early tribal grouping known as the Gewisse, a term used by Bede for the West Saxons, lay on the frontier between the later kingdoms of Wessex and Mercia.