Claim: Owain Fychan controlled Mechain, Cynllaith, Caereinion and Mochnant Is Rhaeadr, and  was able to recapture the Carreghofa Castle in 1187.
Evidence: Styled Lord of Mechain Is Coed and one of the sons of Madog ap Maredudd. They were unable to control the territories gained to the west of Oswestry, so Owain's descendants were able to continue to rule over a much diminished realm in Mechain until the end of the 13th century.