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Castle Mound, Llanfyrnach is a medieval motte, a defensive earthwork consisting of a raised mound topped by timber or stone fortifications. The monument sits upon Caradoc Rocks, a bedrock formation of mudstone, siltstone and sandstone laid down during the Caradocian period. This solid geological foundation provided stable ground for the substantial earthwork construction typical of Norman and early medieval Wales, where such mottes served as administrative and military strongholds.
The motte form—an artificially heightened mound surrounded by ditches and outer defences—was introduced to Wales following the Norman advance into the region. Llanfyrnach's example represents the strategic importance of the locality within the medieval Welsh landscape. The monument stands as physical evidence of the period's defensive architecture and settlement patterns, demonstrating how local topography and geology influenced the placement and construction of fortified positions.
Castle Mound, Llanfyrnach is protected by Cadw, the Welsh heritage organisation, under reference PE097, ensuring its preservation as a scheduled ancient monument. The site remains an important archaeological resource for understanding medieval settlement and military organisation in the region, preserving visible traces of the earthwork construction techniques employed during the medieval period.
Castle Mound, Llanfyrnach is a scheduled monument protected by Cadw under reference PE097. View the official record →
Castle Mound, Llanfyrnach is a medieval motte, a defensive earthwork consisting of a raised mound topped by timber or stone fortifications. It is designated a Scheduled Ancient Monument by Cadw under reference PE097.
Castle Mound, Llanfyrnach dates from the medieval period, and is classified as a motte. It is one of over 32,000 scheduled monuments protected across the UK.
Castle Mound, Llanfyrnach 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 PE097.
Several scheduled monuments lie within 10 km, including Castell Mawr Mound and Bailey Castle (4.7 km), Crug Hywel Round Barrow (4.7 km), Two Round Barrows near Crossroads N of Eglwsfair-a-Churig Church (4.8 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Castle Mound, Llanfyrnach'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.
Castle Mound, Llanfyrnach stands on Caradoc Rocks (Undifferentiated), bedrock that formed in the Caradocian. The rock here is mudstone, siltstone and sandstone.