Bryn Llys, Glascwm

Has been described as a Questionable Timber Castle (Motte), and also as a Questionable Masonry Castle

There are no visible remains

NameBryn Llys, Glascwm
Alternative NamesMount Hely; Brynllys
Historic CountryRadnorshire
Modern AuthorityPowys
1974 AuthorityPowys

Mound on small promontory prob castle site. Foundations noted 1858 (Williams, J, 1858). No building remains now visible. (Clwyd Powys Archaeological Trust HER)

Gatehouse Comments

The given map reference may be suspect and such an early and unsupported reference is also suspect. The temptation must be to see this as as mislocated or confused reference to Hundred House motte. However, the given site is not too distant from the church and would command the road and can not be totally dismissed, although it is more likely that the foundation seen here were but not those of a fortified building. Suggested a welsh motte predecessor to Hundred House Motte. However, Paul Remfry writes 'certainly not predeccesor of Glan Edw which is prob 1090's. Might just have been one of its surrounding mottes as sub-infeudation like Cregina.'

- Philip Davis

Not scheduled

Not Listed

County Historic Environment Record
OS Map Grid ReferenceSO149528
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Calculate Print


  • King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol. 2 p. 412
  • RCAHMW, 1913, An inventory of the Ancient Monuments of Radnorshire (HMSO) p. 52 no. 192 online copy
  • Davies, Edwin (ed), William, Jonathan, 1905, A General History of the County of Radnor (reprinted from 1858, Archaeologia Cambrensis (ser3) Vol. 4) p. 318


  • Williams, J., 1858, 'History of Radnorshire' Archaeologia Cambrensis Vol. 13 p. 469-616 esp p. 599 online copy


  • Remfry, Paul, 21-12-2005, pers. corr.