Although these suppliers don't match your search for Castles in Carmarthenshire, they are within approximately 40 miles and could still be of interest.
Venues, Castles, Swansea, Glamorganshire
Craig Y Nos Castle is a beautiful and historic castle in South Wales that is a popular wedding venue. The castle has a Grade I listed opera house theatre that can be used for the ceremony, as well as a refurbished Conservatory that is perfect for the wedding breakfast. The castle also has stunning views over the Country Park and the Brecon Beacons National Park, making it a very picturesque setting for a wedding. (Castles in Carmarthenshire)