- Born: Cir 834 2417
- Marriage (1): Judith of the West Franks circa 858
- Died: 20 Dec 860
- Buried: Sherborne, Dorset, England
King of Wessex (from 855/856), the eldest son of Aethelwulf, with whom he led the West Saxons to victory against the Danes at Aclea (851). He reportedly rebelled against his father either before (855) or on the latter's return from Rome in 856 and deprived him of Wessex, which he ruled until his death. On his father's death in 858 he married his stepmother, Judith.
Noted events in his life were:
• Acceded: King of Wessex, 856.
Ethelbald married Judith of the West Franks, daughter of Charles II the Bald of France and Irmentrud of Orléans, circa 858. (Judith of the West Franks was born in 843 and died in 870.)