Welsh village located in the south-west on Isle of Anglesey. Former capital of the Kingdom of Gwynedd. Aberffraw (Aberffro in Welsh) is where Branwen ferch Llŷr (daughter of the Welsh Sea god) and Matholch (an Irish King) were married. During the wedding festivities, Branwen's half-brother, Efnysien maimed Matholwch's horses prompting the events described in the Mabinogi's second branch.
An ABCs of Gods, Myths, and Superstitions.