Anglo-Saxons - Kent
The kingdom of Kent existed from either the fifth or the sixth century CE. Following the end of Roman administration in 410, Germanic tribal groups moved into the area, as testified by both archaeological evidence and Late Anglo-Saxon textual sources. The primary ethnic group to settle in the area appears to have been the Jutes: they established their Kingdom in East Kent and may initially have been under the dominion of the Kingdom of Francia. The earliest recorded King of Kent was Æthelberht, who, as Bretwalda, wielded significant influence over other Anglo-Saxon kings in the late sixth century. The Christianization of the Anglo-Saxons began in Kent during Æthelberht's reign with the arrival of the monk Augustine of Canterbury and his Gregorian mission in 597. Kent was one of the seven kingdoms of the so-called Anglo-Saxon heptarchy, but it lost its independence in the 8th century when it became a sub-kingdom of Mercia. In the 9th century it became a sub-kingdom of Wessex, and in the 10th century it became part of the unified Kingdom of England that was created under the leadership of Wessex.