Idvallo (''
Welsh:'' ''Eidwal mab Owain'') was a legendary king of the
Britons
British people or Britons, also known colloquially as Brits, are the citizens of the United Kingdom of Great Britain and Northern Ireland, the British Overseas Territories, and the Crown dependencies.: British nationality law governs mod ...
as recounted by
Geoffrey of Monmouth
Geoffrey of Monmouth ( la, Galfridus Monemutensis, Galfridus Arturus, cy, Gruffudd ap Arthur, Sieffre o Fynwy; 1095 – 1155) was a British cleric from Monmouth, Wales and one of the major figures in the development of British historiography ...
. He was the son of King
Ingenius and he replaced King
Enniaunus. Idvallo is said by Geoffrey to have reigned righteously to mend the ills his cousin had brought. He was succeeded by his cousin,
Runo.
References
{{Geoffrey of Monmouth
Legendary British kings
3rd-century BC legendary rulers