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Domen Seba is a motte castle mound located in Carmarthenshire, Wales, representing a form of early medieval fortification characteristic of the Norman period in Wales. The monument consists of a substantial earthwork comprising a raised mound with associated defensive ditching, typical of motte-and-bailey castle construction of the eleventh and twelfth centuries. The site's elevated position and engineering suggest it served as a significant stronghold during the period of Norman expansion and consolidation in south Wales, when such fortifications formed key elements of the military landscape. The earthwork remains substantially preserved, retaining its principal structural form despite the passage of centuries.
Domen Seba (or Y Tomen Fawr) Castle Mound is a scheduled monument protected by Cadw under reference CM020. View the official record →
Domen Seba is a motte castle mound located in Carmarthenshire, Wales, representing a form of early medieval fortification characteristic of the Norman period in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference CM020.
Domen Seba (or Y Tomen Fawr) Castle Mound dates from the medieval period, and is classified as a motte. It is one of over 32,000 scheduled monuments protected across Britain.
Domen Seba (or Y Tomen Fawr) 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 CM020.
Several scheduled monuments lie within 10 km, including Nant-Gronw Round Barrows (5.6 km), Crug Ieuan Round Barrow (5.9 km), Garreg Wen Standing Stone (6 km).
Aubrey generates in-depth historical research for any address in Britain — drawing on scheduled monument data, Domesday records, Roman heritage, PAS finds and medieval history to reveal the complete story of a landscape.
Research the area around Domen Seba (or Y Tomen Fawr) Castle Mound