Castles · Mid Wales
Llanthomas Castle Mound
In or near Hay-on-Wye.
Llanthomas Castle Mound — castle in Powys, Wales, UK.

Wikimedia Commons contributors — see linked file page for photographer and licence licence
Plan your visit
- Typical visit
- 1.5 h–3 h
- Free entry
- Family-friendly
- Limited wheelchair access
About
Llanthomas Castle Mound is a castle in the United Kingdom — fortified architecture from the medieval, Tudor, or Victorian-revival period. Heritage designation: scheduled monument. Wikidata describes it as: "castle in Powys, Wales, UK". Coordinates: 52.0560°, -3.1549°.
Photo gallery
Official information
Llanthomas Castle Mound, located in Llanigon, is a scheduled monument featuring the remains of a medieval motte and ditch. The site includes a large, steep-sided mound surrounded by a shallow ditch, offering insights into the historical architecture of the period.
From the Wikipedia article
Llanthomas Castle Mound near Hay-on-Wye, Powys, was built by the Normans after the 1066 Norman Conquest of England, probably after the Norman invasion of Wales in 1081, but before 1215. It was a motte-and-bailey castle design. The building materials were earth, rubble, and timber. The earth was probably obtained from the surrounding ditch and the timber from nearby woods. Cadw are the Welsh government-funded regulatory body for the scheduling of historical assets in Wales. They describe Llanthomas Castle Mound as an important relic of medieval architecture which might extend knowledge of medieval defensive practices. Their scheduled area comprises the motte and a substantial area of lawn at the base of the motte, where related evidence is expected to survive.
Excerpt from Wikipedia under CC BY-SA 4.0. See the source article linked in Sources below.
Background
History
Antiquarian sources have revealed the link between Llanthomas Castle Mound with Llanigon, Llanthomas and the River Wye. In Tudor times, Theophilus Jones suggested that Llanigo (Llaneygan in Anglo-Saxon, known today as Llanigon) was named after the first British female saint called Eigen. The pre-conquest nucleated settlement grew around a church. The oldest part of the current church building dates to the 13th century, suggesting that the current building was built on or near the site of an older church. Nothing is known of the history of the Trefynys settlement, "though some relationship with the motte at Llanthomas 700m down the Digeddi Brook seems assured". suggests that the dedication…
Sourced from Wikipedia under CC BY-SA 4.0.
- Coordinates
- 52.0560, -3.1549
- District
- Powys
- Parish
- Llanigon
- Postcode
- HR3 5PU
- Parliamentary constituency
- Brecon, Radnor and Cwm Tawe
- Official site
- www.gatehouse-gazetteer.info
Sources
- wikidata: Q20594302 (CC0)
- wikipedia: Llanthomas Castle Mound (CC BY-SA 4.0)
- commons: Llanthomas Castle Mound.jpg (CC BY-SA 4.0)
Other places nearby

Llanthomas Motte
Castles · 0.0 km

Bridge Over Digedi Brook (Nw of Llanigon Village)
Historic bridges · 0.2 km

Llanigon
National parks · 0.4 km

Paddocks Hill
Mountains & hills · 0.5 km

Parish Church of St Eigon, Llanigon
Abbeys & priories · 0.6 km

Hay-On-Wye Caravan Park
Campsites · 1.0 km

Hay Outdoor Training
Campsites · 1.0 km

Pen-y-common
Mountains & hills · 1.2 km

Wern Wood Hillfort, Penyrwrlodd
Vineyards · 1.4 km

Llowes Castle Tump
Castles · 1.8 km

Llowes Castle Tump
Literary houses · 1.8 km

Seren Bach Campsite
Campsites · 2.0 km
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Frequently asked questions
- Where is Llanthomas Castle Mound?
- Llanthomas Castle Mound is in Mid Wales, United Kingdom (postcode HR3 5PU), in the parish of Llanigon.
- What is Llanthomas Castle Mound?
- Llanthomas Castle Mound — castle in Powys, Wales, UK.
- How do I get to Llanthomas Castle Mound?
- Drivers can use postcode HR3 5PU.
- Is Llanthomas Castle Mound a listed building?
- Llanthomas Castle Mound is officially recognised as scheduled monument listed.
- Does Llanthomas Castle Mound charge admission?
- Llanthomas Castle Mound typically charges admission. Check the official site for current ticket prices and opening hours.
- How do I get to Llanthomas Castle Mound?
- Drivers can navigate to postcode HR3 5PU. It sits within the Brecon, Radnor and Cwm Tawe parliamentary constituency.