Rederchius 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 ...

according to

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 ...

's ''

History of the Kings of Britain ''Historia regum Britanniae'' (''The History of the Kings of Britain''), originally called ''De gestis Britonum'' (''On the Deeds of the Britons''), is a pseudohistorical account of British history, written around 1136 by Geoffrey of Monmouth. I ...

'' (1136). He was preceded by

Redon Redon (; ) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France. It is a sub-prefecture of the department. Geography Redon borders the Morbihan and Loire-Atlantique departments. It is situated at the junction of t ...

and succeeded by Samuil Penissel. ''History of the Kings of Britain'' 3.19 at Wikisource. Lewis Thorpe's translation for Penguin Classics (p. 105) gives two kings following him, Samuil followed by Penessil.

References

{{Geoffrey of Monmouth Legendary British kings