Rivallo (''

Welsh Welsh may refer to: Related to Wales * Welsh, referring or related to Wales * Welsh language, a Brittonic Celtic language spoken in Wales * Welsh people People * Welsh (surname) * Sometimes used as a synonym for the ancient Britons (Celtic peop ...

:'' Rhiwallon) 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 accounted 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 historiograph ...

. He was the son of King

Cunedagius Cunedagius ( Latinized form; cy, CuneddaHenry Lewis (ed.), ''Brut Dingestow'' (University of Wales Press, 1942), p. 31.) was a legendary king of the Britons, as recounted by Geoffrey of Monmouth. He was the son of Henwinus, Duke of Cornwall, and R ...

and was noted as a young king who reigned with moderation. Geoffrey describes him as a "peaceful and fortunate youth, who ruled the kingdom well".Geoffrey of Monmouth: The History of the Kings of Britain : an Edition and Translation of De Gestis Britonum (Historia Regum Britanniae), Boydell & Brewer, 1 Jan 2007, p.44. His reign was troubled by natural disasters: a rain of blood that lasted three days, a devastating plague, and a great swarm of flies. He was succeeded by his son

Gurgustius Gurgustius () was a legendary king of the Britons as accounted by Geoffrey of Monmouth. He was the son of King Rivallo Rivallo ('' Welsh:'' Rhiwallon) was a legendary king of the Britons as accounted by Geoffrey of Monmouth Geoffrey of Monmou ...

References

{{Geoffrey of Monmouth Legendary British kings