Scheduled Monuments in Pembrokeshire Scheduled Monuments in Pembrokeshire Pembrokeshire is the fifth-largest county in Wales, but has more Ancient Monuments (526) than any except Powys. This gives it an extremely high density of monuments, with 33.4 per 100km2. (Only the tiny County Boroughs of Newport and Merthyr Tydfil have a higher density). With three-quarters of its boundary being coastline, Pembrokeshire occupies the western end of the West Wales peninsular, terminating with the tiny cathedral city of St David's. It was a historic county in its own right but between 1975 and 1996 it joined Carmarthen and Ceredigion in the much larger county of Dyfed.
Cuisine of Pembrokeshire have been used to re-stock some oyster beds, although native oysters are making a comeback around Carew, Pembrokeshire and Benton Castle at Milford Haven. However, the shellfish industry has disappeared from around the Llangwm part of the coast. Seabirds were once taken for food and, because they came from the sea and lived on fish, they were regarded as fish for religious purposes, when meat was required to be replaced with fish in the diet. The English built their castles across Pembrokeshire to defend the south of the county from the Welsh to the north. The boundary that developed, known