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Ponsticill Inscribed Stone is an early medieval monument comprising a carved stone bearing an inscription in the Latin alphabet. The stone dates to the period between the 5th and 7th centuries, when such monuments served as territorial markers, memorials, or boundary stones across Wales and the wider post-Roman west. The inscription records a name or commemorative text, testifying to the persistence of literacy and Romano-British cultural traditions during the early medieval period.
The stone sits upon Upper Devonian bedrock of sandstone and conglomerate, interbedded strata formed over 350 million years ago. This geological foundation is characteristic of South Wales, where such ancient rocks underlie much of the valley landscape. The inscription's survival on this resistant stone base has ensured the text's preservation across fourteen centuries, making it an invaluable source for understanding early medieval society, language and settlement patterns in the region.
The monument is protected by Cadw, the Welsh heritage authority, under reference BR141. Inscribed stones of this period and character are comparatively rare finds, and their distribution across Wales provides crucial evidence for early medieval settlement, ecclesiastical organisation and the extent of continued Roman administrative influence in post-imperial Britain.
Ponsticill Inscribed Stone is a scheduled monument protected by Cadw under reference BR141. View the official record →
Ponsticill Inscribed Stone is an early medieval monument comprising a carved stone bearing an inscription in the Latin alphabet. It is designated a Scheduled Ancient Monument by Cadw under reference BR141.
Ponsticill Inscribed Stone dates from the early medieval period, and is classified as a inscribed stone. It is one of over 32,000 scheduled monuments protected across the UK.
Ponsticill Inscribed Stone 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 BR141.
Several scheduled monuments lie within 10 km, including Black Pins early ironstone workings (8.9 km), Cyfarthfa balance pond and leat (9 km), Cwm Pit and head of railway (9.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Ponsticill Inscribed Stone'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.
Ponsticill Inscribed Stone stands on Upper Devonian Rocks (Undifferentiated), bedrock that formed in the Late Devonian. The rock here is sandstone and conglomerate, interbedded.