Æthelbert of Kent was a king who ruled in the early 7th century, around 560 to 616 AD. He is best known for being the first English king to convert to Christianity, largely due to the influence of Augustine of Canterbury, who was sent by Pope Gregory I to spread the faith in England. Æthelbert's conversion helped establish Christianity in the region and led to the construction of churches. During his reign, Æthelbert also issued one of the earliest known legal codes in England, which aimed to create order and justice in his kingdom. His rule marked a significant period in the history of Kent and the broader development of early medieval England.