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Aberllynfi Church Hall Mound

Also known as, or recorded in historical documents as;
Glasbury; Glasbiry

In the community of Gwernyfed.
In the historic county of Brecknockshire.
Modern authority of Powys.
Preserved county of Powys.

OS Map Grid Reference: SO17563827
Latitude 52.03670° Longitude -3.20223°

Aberllynfi Church Hall Mound has been described as a probable Timber Castle, and also as a probable Siege Work.

There are earthwork remains.


Probably natural mound some 20m diameter and 10m high. Noted as possible earthwork by CPAT site visit 1979. (Clwyd Powys Archaeological Trust HER)

1233. Aug. 29. Hereford.–Appointment, during pleasure, of W. son of Warin to the custody of the castle of Glasbiry; and mandate to Baldwin de Gisnes to deliver it to him. (CPR)

Mound formed by 3m deep rock cut ditches. Remfry identifies this site as a possible siege castle of 1233. Presumable he is considering this as the site recorded in 1233, near Aberllynfi but distinct from it, mentioned in Hogg and King under the name Glasbury but unlocated.
This site is a classic castle location, by a church and very close to a site of a early medieval Llys. Remfry's description of rock cut ditches is not consistent with a natural formation, but it's also unusual in early motte castles. Certainly use as a siege work can not be excluded but questionable about this being constructed as such. May actually be a feature of a post llys high status manorial site.

The map reference given in Archwillo does not quite seem to be correct.
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This record last updated before 1 February 2016