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Cilwhybert Castle Mound is a medieval motte situated in Wales and protected as a scheduled ancient monument under Cadw reference BR127. The earthwork rises from bedrock composed of Lower Devonian rocks—mudstone, siltstone and sandstone laid down during the Early Devonian period—which would have provided a firm foundation for the mound's construction and subsequent settlement.
Motted sites of this type were typically established during the Norman period and the High Middle Ages as military strongholds and administrative centres. The motte would originally have supported a timber or stone tower serving as both refuge and residence for a local lord or garrison commander. The natural slope and solid geological foundation at Cilwhybert would have made the site suitable for excavation and mounding, enabling the construction of defensive earthworks.
Today the mound survives as an upstanding earthwork, its form shaped by medieval engineering and subsequent centuries of weathering and agricultural use. The solid Devonian bedrock beneath continues to anchor this monument to its place in the Welsh medieval landscape, preserving evidence of power and settlement that shaped the region during the Middle Ages.
Cilwhybert Castle Mound is a scheduled monument protected by Cadw under reference BR127. View the official record →
Cilwhybert Castle Mound is a medieval motte situated in Wales and protected as a scheduled ancient monument under Cadw reference BR127.
Cilwhybert Castle Mound dates from the medieval period, and is classified as a motte. It is one of over 32,000 scheduled monuments protected across the UK.
Cilwhybert Castle Mound 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 BR127.
Several scheduled monuments lie within 10 km, including Y Gyrn longhuts (5.1 km), Y Gyrn hut platforms (5.2 km), Y Gyrn Hut Platform (S) (5.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cilwhybert Castle Mound'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.
Cilwhybert Castle Mound stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.