1) Anglo-saxon boy name 
(c. 716-757) British king of Mercia. He succeeded to a weakened kingdom, but the death of Wihtred of Kent in 725 and the abdication of Ine of Sussex in 726 left him supreme in southern England. In 731 Bede...(died 860) British king of Wessex. In 856 his father, Ethelwulf, agreed to a division of his kingdom, Ethelbald taking Wessex, while Ethelwulf retained Kent and the southeast. He married Judith, his father's...
Ethelbald was king of Mercia in 716. He was slain by his successor Beornred.