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Castell Bronllys is a medieval motte-and-bailey castle situated in Breconshire, Wales, constructed during the Norman period following the Anglo-Norman penetration of South Wales in the late eleventh century. The castle is distinguished by its substantial circular stone keep, known as a round tower, which was erected on the motte in the twelfth century, replacing earlier timber fortifications typical of the initial Norman settlement phase. The circular tower survives to considerable height and represents an important example of military architecture from the High Medieval period, demonstrating the strategic importance of the site in controlling the Usk valley. Castell Bronllys remained in use throughout the medieval period as a defensive stronghold, though it was eventually superseded by other fortifications in the region and fell into disuse following the later medieval period.
Castell Bronllys is a scheduled monument protected by Cadw under reference BR008. View the official record →
Castell Bronllys is a medieval motte-and-bailey castle situated in Breconshire, Wales, constructed during the Norman period following the Anglo-Norman penetration of South Wales in the late eleventh century. It is designated a Scheduled Ancient Monument by Cadw under reference BR008.
Castell Bronllys dates from the medieval period, and is classified as a castle. It is one of over 32,000 scheduled monuments protected across the UK.
Castell Bronllys 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 BR008.
Several scheduled monuments lie within 10 km, including Enclosure West of Sorgwm (7.5 km), Crannog in Llangorse Lake (8.1 km), Mynydd Troed, round cairn on S end of (8.3 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Castell Bronllys'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.
Castell Bronllys stands on Pridoli Rocks (Undifferentiated), bedrock that formed in the Pridoli. The rock here is mudstone, siltstone and sandstone.