
1) English boy name 2) King 3) Male monarch 4) Wayward cetacean
Found on
https://www.crosswordclues.com/clue/ethelbert

(c. 552-616) King of Kent 560-616. He was defeated by the West Saxons in 568 but later became ruler of England south of the River Humber. Ethelbert received the Christian missionary Augustine in 597 and later...
Found on
http://www.encyclo.co.uk/local/20688

(died 866) British king of Wessex. He was the third son of Ethelwulf and succeeded his father in Kent in 858; on the death of Ethelbald he took control of the whole realm in 860. ...
Found on
http://www.encyclo.co.uk/local/20688

[
n] - Anglo-Saxon king of Kent who was converted to Christianity by Saint Augustine
Found on
http://www.webdictionary.co.uk/definition.php?query=Ethelbert
noun Anglo-Saxon king of Kent who was converted to Christianity by Saint Augustine; codified English law (552-616)
Found on
https://www.encyclo.co.uk/local/20974

King of Kent 560–616. He was defeated by the West Saxons in 568 but later became ruler of England south of the River Humber. Ethelbert received the Christian missionary Augustine in 597 and later converted to become the first Christian ruler of Anglo-Saxon England. He issued the first written code of laws known in England. He married a Fre...
Found on
https://www.encyclo.co.uk/local/21221

a.d. 552?–616, king of Kent 560–616. · a male given name: from Old English words meaning “noble” and “bright.”
Found on
https://www.infoplease.com/dictionary/ethelbert
No exact match found.