What Shakespearean play named after a King of the Britons recorded by the medieval scribe Geoffrey of Monmouth included a character  considered a villain, obsessed with power and overthrowing her elderly father?
Regan (King Lear) Regan is a fictional character in William Shakespeare's tragic play, "King Lear", named after a King of the Britons recorded by the medieval scribe Geoffrey of Monmouth.
Catellus Catellus (Welsh: "Kadell map Geraint" ) was a legendary king of the Britons, as recounted in Geoffrey of Monmouth's work "Historia Regum Britanniae". According to Geoffrey, he was the son of King Gerennus and was succeeded by his son, Millus. In some versions of the "Brut y Brenhinedd", a series of Welsh versions of Geoffrey's "Historia", Catellus is succeeded by his son Coel, who is then succeeded by his own son Porrex II.