© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw
Dinham Castle is a medieval castle situated in Wales and protected by Cadw as a scheduled monument under reference MM153. The castle occupies a site underlain by Dinantian limestone formations interspersed with sandstone and argillaceous rocks, geological strata laid down during the Mississippian period. This limestone geology would have influenced both the castle's defensive position and the availability of building materials during its construction and modification across the medieval period.
The castle's location on Dinantian bedrock provided a naturally strong defensive foundation typical of medieval fortress placement in Wales. Castles of this period served multiple functions as military strongholds, administrative centres, and symbols of lordly authority. The underlying geology of limestone with subordinate sandstone layers would have shaped quarrying practices and the character of the stonework visible in surviving structures.
As a protected monument in the Welsh heritage landscape, Dinham Castle preserves evidence of medieval military architecture and settlement patterns. Its survival as a scheduled monument under Cadw's stewardship contributes to the archaeological record of Wales's medieval period and demonstrates the strategic importance of particular landscape locations to Norman and post-Norman rulers seeking to control Welsh territory.
Dinham Castle is a scheduled monument protected by Cadw under reference MM153. View the official record →
Dinham Castle is a medieval castle situated in Wales and protected by Cadw as a scheduled monument under reference MM153.
Dinham Castle dates from the medieval period, and is classified as a castle. It is one of over 32,000 scheduled monuments protected across the UK.
Dinham Castle is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is MM153.
Several scheduled monuments lie within 10 km, including Caldicot Castle (unoccupied parts) (3.9 km), St. Mary's Churchyard Cross, Portskewett (4.6 km), Harold's House (site of) (4.6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Dinham Castle's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Dinham Castle stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.