Ancient Monuments

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Twyn Castell

A Scheduled Monument in Gelligaer, Caerphilly (Caerffili)

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Coordinates

Latitude: 51.6646 / 51°39'52"N

Longitude: -3.2496 / 3°14'58"W

OS Eastings: 313672

OS Northings: 196942

OS Grid: ST136969

Mapcode National: GBR HV.67BP

Mapcode Global: VH6DD.MFF8

Entry Name: Twyn Castell

Scheduled Date:

Source: Cadw

Source ID: 2248

Cadw Legacy ID: GM121

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Caerphilly (Caerffili)

Community: Gelligaer

Built-Up Area: Ystrad Mynach

Traditional County: Glamorgan

Description

The monument comprises the remains of a motte dating to the medieval period (c. 1066 -1540 AD). A motte is a large conical or pyramidal mound of soil and/or stone, usually surrounded by either a wet or dry ditch, and surmounted by a tower constructed of timber or stone. Twyn Castell is a large steep-sided motte, with a flat top with a diameter measuring 15m.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive practices. The monument is well-preserved and an important relic of the medieval landscape. It retains significant archaeological potential, with a strong probability of the presence of both structural evidence and intact associated deposits.

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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