Ethelbert 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, influenced by the missionary efforts of Augustine of Canterbury. Ethelbert's conversion marked a significant turning point in the spread of Christianity in England. Ethelbert's reign was notable for the establishment of the first written laws in England, known as the Laws of Ethelbert. These laws helped to create a more organized society and laid the groundwork for future legal systems. His legacy is remembered for promoting peace and religious tolerance during a time of great change.