(c.560-616) King. Credited with the introduction of Christianity to southern Anglo-Saxon England by inviting St Augustine of CanterburyAugustine of Canterbury, St (d. 604/5) Sent from Rome by Gregory the Great to convert the English. First Archbishop of Canterbury. and the Roman missionMission 1. A group of people sent out to share religious faith. 2. The task of sharing faith. in 597. Aethelbert married Bertha, the ChristianChristian Name originally given to disciples of Jesus by outsiders and gradually adopted by the Early Church to designate all members of the church. daughter of Frankish king Charibert who insisted she should be free to practice her faithFaith 1. Belief and trust in someone or something. 2. Acceptance of particular religious teachings. after marriage. Aethelbert converted in 597 and was the first Christian English king.