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Llanthomas Castle Mound is a motte situated in Breconshire, Wales, representing medieval defensive earthwork architecture typical of Norman settlement patterns in South Wales. The monument consists of a prominent artificial mound, characteristic of motte-and-bailey fortification design, which served as a stronghold during the period of Anglo-Norman expansion and consolidation in Wales during the eleventh to thirteenth centuries. Its location in Breconshire places it within a region of considerable strategic importance, where such mottes were instrumental in establishing Norman military control over conquered Welsh territories. The earthwork survives as an important archaeological record of medieval fortification practice and the territorial ambitions of Norman lords operating in the Welsh March.
Llanthomas Castle Mound is a scheduled monument protected by Cadw under reference BR078. View the official record →
Llanthomas Castle Mound is a motte situated in Breconshire, Wales, representing medieval defensive earthwork architecture typical of Norman settlement patterns in South Wales. It is designated a Scheduled Ancient Monument by Cadw under reference BR078.
Llanthomas 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.
Llanthomas 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 BR078.
Several scheduled monuments lie within 10 km, including Garden Earthworks at Old Gwernyfed (4.7 km), Pipton Long Barrow (5.8 km), Two bowl barrows and a lime kiln 220m west of Llan Oleu (6 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Llanthomas 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.
Llanthomas Castle Mound stands on Pridoli Rocks (Undifferentiated), bedrock that formed in the Pridoli. The rock here is mudstone, siltstone and sandstone.