King Æthelberht of Kent was a significant figure in early English history, ruling from around 590 to 616 AD. He is best known for being the first king in England to convert to Christianity, influenced by the missionary efforts of Saint Augustine of Canterbury. His conversion marked a pivotal moment in the spread of Christianity throughout England. Æthelberht's reign was characterized by the establishment of legal codes, which helped to unify his kingdom. He is also remembered for his marriage to Bertha of Kent, a Christian princess, which further solidified his commitment to the new faith and fostered relations with the Frankish Kingdom.