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Skenfrith Castle is a medieval fortress situated in Monmouth, Wales, built in the early 13th century as part of the Three Castles defensive network protecting the Welsh border. The castle features a distinctive circular keep surrounded by a substantial stone curtain wall with rectangular towers, representing a significant development in castle architecture of its period. Originally constructed under Norman control, Skenfrith functioned as both a military stronghold and administrative centre, controlling the river crossing and strategic routes through the area. The site demonstrates the evolution of medieval military architecture, with later modifications reflecting the changing defensive needs of the border region throughout the medieval period.
Skenfrith Castle is a scheduled monument protected by Cadw under reference MM088. View the official record →
Skenfrith Castle is a medieval fortress situated in Monmouth, Wales, built in the early 13th century as part of the Three Castles defensive network protecting the Welsh border. It is designated a Scheduled Ancient Monument by Cadw under reference MM088.
Skenfrith Castle dates from the medieval period, and is classified as a castle. It is one of over 32,000 scheduled monuments protected across the UK.
Skenfrith Castle 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 MM088.
Several scheduled monuments lie within 10 km, including Middle Hendre Round Barrow (6.5 km), Site of Grace Dieu Abbey (7.2 km), Penrhos Mound & Bailey Castle (8.5 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Skenfrith Castle'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.
Skenfrith Castle stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is mudstone, siltstone and sandstone.