Although these suppliers don't match your search for Manor house, Stately homes in Glamorganshire, they are within approximately 40 miles and could still be of interest.
Venues, Manor house, Stately homes, Monmouth, Monmouthshire
Caer Llan is a family run wedding & events venue in Monmouthshire, South Wales. Nestled into a secluded hillside in 25 acres of garden, field and woodland, the beautiful old country house enjoys stunning views over the rolling countryside of the Vale of Usk towards the distant Welsh mountains. (Manor house, Stately homes in Glamorganshire)