- Pencoed Castle - brief history and photographs Pencoed (pronounced Pen-koyd ) is set in around 370 acres of rolling farmland about one km. from the village of Llandevaud in Gwent. We have a location plan here and some new higher res. photos here . September '98, an old print added here. The castle is a fortified Tudor manor house thought to have been built by Sir Thomas Morgan during the first ...data-wales.co.uk