Gadeon, King of Dumnonia (Welsh, Cadfan/Latin,
Catamanus/English,Gideon). He appears in the 'Dream of Macsen
Wledig' as Conan's brother,though he was actually his son by
St.Ursula, presumably born in Rome. Heinherited his mother's
Kingdom on the death of his father, while hishalf-brother,
Erbin, took on Brittany. He probably died about 405.[David Nash
Ford, Early British Kingdoms: Biography of Gadeon, King
ofDumnonia]