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The Moat Mound and Bailey Castle at Tre Fedw is a medieval motte and bailey castle, a fortification type widely constructed across Wales and the English Marches during the 11th to 13th centuries. The site exploits the underlying Lower Devonian geology, where mudstone, siltstone and sandstone provide a firm foundation for the earthwork defences. The distinctive two-part design consists of a raised mound—the motte—topped originally by wooden palisades and a simple tower, alongside an adjoining flattened enclosure—the bailey—where domestic and military buildings once stood.
The castle sits within landscape typical of early medieval settlement patterns in Wales, where such fortifications served administrative and defensive purposes for Norman and Welsh lords competing for territorial control. The substantial earthworks visible today reflect the considerable labour invested in construction, with the motte rising from the surrounding terrain to command local approaches and the bailey offering space for garrison, storage and refuge for local populations during periods of conflict.
The monument is protected by Cadw, the Welsh heritage organisation, under the reference MM063, recognising its archaeological significance as evidence of medieval military architecture and social hierarchy. Despite centuries of agricultural use and landscape change, the earthwork remains a legible testimony to early medieval power structures in this part of Wales.
The Moat Mound and Bailey Castle, Tre Fedw is a scheduled monument protected by Cadw under reference MM063. View the official record →
The Moat Mound and Bailey Castle at Tre Fedw is a medieval motte and bailey castle, a fortification type widely constructed across Wales and the English Marches during the 11th to 13th centuries. It is designated a Scheduled Ancient Monument by Cadw under reference MM063.
The Moat Mound and Bailey Castle, Tre Fedw dates from the medieval period, and is classified as a motte and bailey. It is one of over 32,000 scheduled monuments protected across the UK.
The Moat Mound and Bailey Castle, Tre Fedw 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 MM063.
Several scheduled monuments lie within 10 km, including White Castle (7 km), Area of Conventual Buildings, St Mary's Priory (8.2 km), Abergavenny Roman Fort (8.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of The Moat Mound and Bailey Castle, Tre Fedw'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.
The Moat Mound and Bailey Castle, Tre Fedw stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.