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Twyn Tudor is a medieval motte located in Wales, situated on bedrock of the South Wales Upper Coal Measures Formation. The underlying strata of mudstone, siltstone and sandstone were laid down during the Westphalian period, their variable lithology creating an irregular foundation across the site. Ironstone and ferricrete deposits within these measures would have influenced both the physical landscape and the availability of materials for construction and exploitation during the medieval period.
The motte represents a characteristic form of Norman defensive architecture, comprising an elevated earthwork that would have supported a timber palisade and possibly a wooden tower or keep at its summit. Such structures served as local strongholds for territorial control and administration following the Norman conquest of South Wales. The choice of this particular location reflects the strategic considerations of medieval lords seeking defensible positions within the landscape.
Twyn Tudor is protected as a scheduled monument under Cadw's reference MM035, recognising its historical significance and archaeological value. The motte remains a substantial earthwork feature in the Welsh landscape, its physical form largely preserved despite centuries of exposure to erosion and land use change. It continues to provide evidence of the Norman settlement and feudal organisation of medieval Wales.
Twyn Tudor is a scheduled monument protected by Cadw under reference MM035. View the official record →
Twyn Tudor is a medieval motte located in Wales, situated on bedrock of the South Wales Upper Coal Measures Formation. It is designated a Scheduled Ancient Monument by Cadw under reference MM035.
Twyn Tudor dates from the medieval period, and is classified as a motte. It is one of over 32,000 scheduled monuments protected across the UK.
Twyn Tudor 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 MM035.
Several scheduled monuments lie within 10 km, including Rudry Ironworks (5.6 km), Castell Meredydd (6 km), Gwern-y-Domen Castle Mound (6.2 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Twyn Tudor'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.
Twyn Tudor stands on South Wales Upper Coal Measures Formation, bedrock that formed in the Westphalian. The rock here is mudstone, siltstone, sandstone, coal, ironstone and ferricrete.