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Cas Troggy Castle is a medieval castle situated in Wales and protected by Cadw as a scheduled monument under reference MM015. The fortress stands upon Lower Devonian bedrock, composed of interbedded sandstone and conglomerate strata formed during the Early Devonian period. This ancient geological foundation provided a naturally stable base for construction and reflects the builder's practical understanding of local ground conditions.
The castle exemplifies medieval military architecture typical of Welsh border regions, where fortifications served both defensive and administrative functions. The Lower Devonian rocks beneath the site—primarily coarse sandstone interspersed with conglomerate layers—offered quarryable stone that likely contributed to the castle's construction materials, reducing the logistical burden of transport across difficult terrain.
The monument's protected status recognises its historical significance within the Welsh medieval landscape. The specific geological context of the site, anchored in the resistant and substantial Lower Devonian strata, would have influenced both the castle's structural longevity and its initial siting decisions. This interplay between medieval strategic placement and underlying geology remains visible in the monument's current condition and arrangement upon the landscape.
Cas Troggy Castle is a scheduled monument protected by Cadw under reference MM015. View the official record →
Cas Troggy Castle is a medieval castle situated in Wales and protected by Cadw as a scheduled monument under reference MM015.
Cas Troggy 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.
Cas Troggy 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 MM015.
Several scheduled monuments lie within 10 km, including Round Barrow 57m South of Stock Wood (6.9 km), Deserted Medieval Village W of St Mary's Church (7.3 km), Wilcrick Hill Camp (7.4 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Cas Troggy 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.
Cas Troggy Castle stands on Lower Devonian Rocks (Undifferentiated), bedrock that formed in the Early Devonian. The rock here is sandstone and conglomerate, interbedded.