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Cof Cymru: National Historic Assets of Wales · Wales

Castell Nonni

Llanllwni, Carmarthenshire, Wales

The record

Designation
Scheduled monument
Site type
Motte
Period
Medieval
Date of designation
4 July 1951
Community
Llanllwni
Unitary authority
Carmarthenshire
Country
Wales
Coordinates (centre of the scheduled area)
52.03667, -4.19581
SAM number
CM102
Cadw record number
434

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1830 "V.3:11-15:XV. Britisches Reich. A. Kon: England. b. Frstenthum Wales: Shire: 37-40" (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

The following provides a general description of the Scheduled Ancient Monument.

The monument comprises the remains of a motte and bailey castle, a military stronghold built during the medieval period. The motte consists of a large conical mound of soil or stone, it measures c 28m in diameter and is about 5m high and 12m in diameter at the top. On the south east side part of a ditch that may have originally surrounded the motte is visible this and measures c 0.5m deep. East of the motte a low rise may represent the remains of the embanked enclosure of a bailey. Both motte and bailey might originally have been further strengthened with palisades, revetments, and/or a tower on top of the motte.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive organisation. The well-preserved monument forms an important element within the wider medieval context and the structure itself may be expected to contain archaeological information relating to chronology, building techniques and functional detail.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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