The Gregorian mission or Augustinian mission was a Christian mission sent by Pope Gregory the Great in 596 to convert Britain's Anglo-Saxons. The mission was headed by Augustine of Canterbury. By the time of the death of the last missionary in 653, the mission had established Christianity among the southern Anglo-Saxons. Along with the Irish and Frankish missions it converted Anglo-Saxons in other parts of Britain as well and influenced the Hiberno-Scottish missions to continental Europe.

The Kingdom of the Kentish, today referred to as the Kingdom of Kent, was an early medieval kingdom in what is now South East England. It existed from either the fifth or the sixth century AD until it was fully absorbed into the Kingdom of Wessex in the late 9th century and later into the Kingdom of England in the early 10th century.