Tomen y Cefnlloer, Llanfyllin

Has been described as a Certain Timber Castle (Motte)

There are earthwork remains

NameTomen y Cefnlloer, Llanfyllin
Alternative NamesMoel Froehas Motte; Tomen Moel Frochas; Tomen Moel Frocas; Tomen Cefnlloer; Tomen Cefn Lloer; Cefn Llawr; Tomen Yr Cefnlloer; Tomen Yr Cefn lle oer; Domen Moel Frochas
Historic CountryMontgomeryshire
Modern AuthorityPowys
1974 AuthorityPowys

Tomen-y-Cefnlloer is a ditched mound, set towards the west end of an east-west ridge, with steep slopes on the north and south, c.27-28m in diameter and 4.2m high, having a somewhat irregular summit, c.10m by 8.0m. On the east is a scarped bailey platform, c.18m by 22m, there is a further possible platform to the west. (Coflein)

Motte 7m high and 20m diameter. The top of the mound is hollowed out. A ditch runs around the west and east sides of the motte. The bailey lies on the east and forms a low semi-circular platform 23m long E-W by 27m wide N-S. The ridge on which the motte and bailey are sited narrows to the west. (Clwyd Powys Archaeological Trust HER)

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 ReferenceSJ118225
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Copyright Dave Barlow of Abaroths World All Rights Reserved
Copyright Dave Barlow of Abaroths World All Rights Reserved
Copyright Dave Barlow of Abaroths World All Rights Reserved

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  • Salter, Mike, 2001, The Castles of Mid Wales (Malvern) p. 43
  • Pettifer, Adrian, 2000, Welsh Castles, A Guide by Counties (Boydell Press) p. 152
  • Higham, R. and Barker, P., 1992, Timber Castles (Batsford) p. 220 (air photo)
  • King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol. 1 p. 298
  • Fisher, J. (ed), 1917 Tours in Wales (1804-1813) by Richard Fenton (Cambrian Archaeological Association) online copy
  • RCAHMW, 1911, An inventory of the Ancient Monuments of Montgomeryshire (HMSO) p. 125 no. 632 online copy


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  • Richards, R., 1943-44, 'The mediaeval castles of north Montgomeryshire: a topographical survey, II' Montgomeryshire Collections Vol. 48 p. 131-42 online copy
  • Richards, R., 1942, 'The mediaeval castles of north Montgomeryshire: a topographical survey I' Montgomeryshire Collections Vol. 47 p. 164-82 online copy
  • Hancock, 1871, Montgomeryshire Collections Vol. 4 p. 239-40