Rederchius was a legendary king of the
Britons according to
Geoffrey of Monmouth's ''
History of the Kings of Britain'' (1136). He was preceded by
Redon 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