Ancient Monuments

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Bryn-Derwen Mound and Bailey Castle

A Scheduled Monument in Llandyssil (Llandysul), Powys

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Coordinates

Latitude: 52.5483 / 52°32'53"N

Longitude: -3.2354 / 3°14'7"W

OS Eastings: 316323

OS Northings: 295211

OS Grid: SO163952

Mapcode National: GBR 9W.DJ46

Mapcode Global: VH684.V6XT

Entry Name: Bryn-Derwen Mound and Bailey Castle

Scheduled Date:

Source: Cadw

Source ID: 3776

Cadw Legacy ID: MG054

Schedule Class: Defence

Category: Motte & Bailey

Period: Medieval

County: Powys

Community: Llandyssil (Llandysul)

Built-Up Area: Abermule

Traditional County: Montgomeryshire

Description

The monument comprises the remains of a motte and bailey castle, a military stronghold built during the medieval period. A motte and bailey castle comprises a large conical or pyramidal mound of soil or stone (the motte) surrounded by, or adjacent to, one or more embanked enclosures (the bailey). Both may be surrounded by wet or dry ditches and could be further strengthened with palisades, revetments, and/or a tower on top of the motte.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive organisation. The well-preserved monument forms an important element within the wider medieval context and the structure itself may be expected to contain archaeological information relating to chronology, building techniques and functional detail.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

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