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Cof Cymru: National Historic Assets of Wales · Wales

Morganstown Castle Mound

Radyr and Morganstown, Cardiff, Wales

The record

Designation
Scheduled monument
Site type
Motte
Period
Medieval
Date of designation
29 May 1958
Community
Radyr and Morganstown
Unitary authority
Cardiff
Country
Wales
Coordinates (centre of the scheduled area)
51.52909, -3.25793
SAM number
GM256
Cadw record number
3373

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 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (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 ditch, dating to the medieval period (c. 1066 -1540 AD). A motte is a large conical or pyramidal mound of soil and/or stone, usually surrounded by either a wet or dry ditch, and surmounted by a tower constructed of timber or stone.

The motte stands c. 4m high with steep sides and a flat top c. 14m in diameter. The ditch around the mound is variable: on the south side it is c. 6m wide with an outer bank c. 1m high and 2.5m wide; on the west side the ditch is the same; on the north and east sides there is no external bank. To the north-east of the mound, near the field boundary, there is a slight ditch and bank running north-south on slightly higher ground. The ditch is 3m wide and the bank is 0.7m high on the outer side of the ditch.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive practices. The monument is well-preserved and an important relic of the medieval landscape. It retains significant archaeological potential, with a strong probability of the presence of both structural evidence and intact associated deposits.

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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