Llyssun Motte

Has been described as a Certain Timber Castle (Motte), and also as a Certain Palace (Other)

There are earthwork remains

NameLlyssun Motte
Alternative NamesLlysin; Llyssin; Llanerfyl; Llyslun; Llynssyn
Historic CountryMontgomeryshire
Modern AuthorityPowys
1974 AuthorityPowys

Llyssun Castle is a motte and bailey castle resting on a scarp above the Banwy floodplain. The ditched motte is c.20m in diameter and 4.0m high, with a summit only 4.0m in diameter, with the bailey to the west represented by a sub-rectangular scarped platform, 16m by 12m. The placename 'Llyssum' may be significant. (Coflein)

Motte sited above the river Banway and surrounded by a ditch 1.3m deep. The motte has a summit diameter of 4m. The bailey, which lies to the east, consists of a raised platform 16m by 12m. The castle was originally approached from the north (Silvester, R J 1992c, 83). Located on a natural spur which runs east-west on the north side of the Banwy flood plain. The motte is 4.0m above the surrounding pasture and has a diameter of 9.0m. It is separated from the bailey to the west by a distinct ditch which is badly eroded. The bailey is 16.0m east to west, 10.0m wide and 3.0m high. Several mature trees grow on the site (Cadw 1998). (Clwyd Powys Archaeological Trust HER)

Gatehouse Comments

Possible earlier welsh high status site.

- Philip Davis

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 ReferenceSJ031100
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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
Copyright Dave Barlow of Abaroths World All Rights Reserved

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  • Morgan, Gerald, 2008, Castles in Wales: A Handbook (Talybont: Y Lolfa Cyf.) p. 245 (listed)
  • Salter, Mike, 2001, The Castles of Mid Wales (Malvern) p. 42
  • Pettifer, Adrian, 2000, Welsh Castles, A Guide by Counties (Boydell Press) p. 152
  • King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol. 1 p. 297
  • RCAHMW, 1911, An inventory of the Ancient Monuments of Montgomeryshire (HMSO) p. 79 no. 396 online copy


  • Spurgeon, C.J., 1966, ‘The castles of Montgomeryshire’ Montgomeryshire Collections Vol. 59 p. 8-9 online copy
  • 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
  • Edwards, G., 1883, 'A history of the parish of Llanerfyl' Montgomeryshire Collections Vol. 16 p. 87-8 online copy


  • Silvester, R.J., 1992, Montgomeryshire Historic Settlements (CPAT report)