Tre Fedw; The Moat

Has been described as a Possible Timber Castle (Motte)

There are earthwork remains

NameTre Fedw; The Moat
Alternative NamesTreveddw; Trefeddw; Coucorney Fawr; Bwlch Trewen
Historic CountryMonmouthshire
Modern AuthorityMonmouthshire
1974 AuthorityGwent

Tre Fedw is a ditched oval mound, 36m by 26m and 5.7m high. Mutilated to the N, the mound appears to have been the subject of ornamental planting. Originally interpreted as a 'Roman tumulus'. (Coflein)

'an early period of castle building when offence played a major part of the design needs. The steepness of the motte and the surrounding ditch also show that inner defence was also a major issue.' (Phillips)

The monument comprises the remains of a motte and bailey castle, a military stronghold built during the medieval period. The site comprises a steep sided conical mound, 5m-6m high and 35m in diameter at the base. On the N side a large chunk of the mound has been quarried away, resulting in a 3.5m deep depression. The summit of the motte has partly been quarried away, with the surviving section measuring 12m NW/SE and 4m NE/SW. On the S and W sides are the remains of a shallow ditch, 3m wide and 1m deep. On the N side are the ephemeral traces of a bailey. (Scheduling Report)

This site is a scheduled monument protected by law

Not Listed

The National Monument Record (Coflein) number(s)
County Historic Environment Record
OS Map Grid ReferenceSO330217
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  • Morgan, Gerald, 2008, Castles in Wales: A Handbook (Talybont: Y Lolfa Cyf.) p. 256 (listed twice as possible)
  • Prior, Stuart, 2006, A Few Well-Positioned Castles: The Norman Art of War (Tempus) p. 110-164
  • Phillips, Neil, 2006, Earthwork Castles of Gwent and Ergyng AD 1050-1250 (British Archaeological Reports) p. 232-3
  • Salter, Mike, 1991, The Castles of Gwent, Glamorgan and Gower (Malvern) p. 74 (slight)
  • King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol. 1 p. 282


  • Hogg, A.H.A. and King, D.J.C., 1963, 'Early castles in Wales and the Marches: a preliminary list' Archaeologia Cambrensis Vol. 112 p. 77-124


  • Phillips, Neil, 2005, Earthwork Castles of Gwent and Ergyng AD 1050-1250 (PhD Thesis University of Sheffield) Download