Æthelberht (also Æthelbert, Aethelberht, Aethelbert, or Ethelbert) ( 560 – 24 February 616 AD) was King of Kent from about 558 or 560 (the earlier date according to Sprott, the latter according to William of Malmesbury Book 1.9 ) until his death. The eighth-century monk Bede, in his Ecclesiastical History of the English People, lists Æthelberht as the third king to hold imperium over other Anglo-Saxon kingdoms. In the late ninth century Anglo-Saxon Chronicle Æthelberht is referred to as a bretwalda, or "Britain-ruler". He was the first English king to convert to Christianity.