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The Mount Mound & Bailey Castle, Hundred House is a medieval motte and bailey earthwork situated in Wales and protected by Cadw as a scheduled monument. The site consists of the characteristic two-part defensive structure typical of Norman and early medieval fortifications: a raised motte (mound) designed to support a timber or stone tower, alongside a lower bailey (outer courtyard) enclosed by banks and ditches. This arrangement allowed defenders to control the surrounding landscape while providing a secure stronghold for local authority.
The monument is founded upon Wenlock Rocks, a Silurian-age bedrock of mudstone, siltstone and sandstone formation. This underlying geology would have influenced both the construction methods and the structural integrity of the earthworks, as the softer sedimentary composition differs from harder volcanic or granite bedrock found elsewhere in Britain. The local stone and soil resources available would have shaped how the fortification's defences were constructed and maintained over time.
As a motte and bailey castle, The Mount represents a widespread building tradition that dominated medieval frontier defence and seigneurial fortification across Britain and Wales from the eleventh century onwards. Such structures typically served as administrative centres and military strongholds for Norman lords establishing control over newly conquered territories. The earthwork's survival today provides evidence of medieval settlement patterns and the strategic importance of this particular location within the Welsh landscape.
The Mount Mound & Bailey Castle, Hundred House is a scheduled monument protected by Cadw under reference RD036. View the official record →
The Mount Mound & Bailey Castle, Hundred House is a medieval motte and bailey earthwork situated in Wales and protected by Cadw as a scheduled monument. It is designated a Scheduled Ancient Monument by Cadw under reference RD036.
The Mount Mound & Bailey Castle, Hundred House 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 Mount Mound & Bailey Castle, Hundred House 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 RD036.
Several scheduled monuments lie within 10 km, including Llanbedr Hill Cist Cairn (6.1 km), Llanbedr Hill Platform House (6.7 km), Aberedw Castle (7.9 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of The Mount Mound & Bailey Castle, Hundred House'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 Mount Mound & Bailey Castle, Hundred House stands on Wenlock Rocks (Undifferentiated), bedrock that formed in the Wenlock. The rock here is mudstone, siltstone and sandstone.