Scheduled MonumentsWalesTwyn Castell
Medieval · Motte

Twyn Castell

Wales
Cadw SAM GM121
Period
Medieval
Site type
Motte
Broad class
Defence
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Twyn Castell is a motte located in Glamorgan, Wales, designated as a scheduled ancient monument under Cadw reference GM121. The site represents a form of medieval defensive earthwork characteristic of the Norman period of Welsh settlement and control, typically dating to the eleventh or twelfth century. The motte survives as a prominent artificial mound, which would originally have supported a timber or stone fortification commanding the surrounding landscape. Such mottes formed part of the broader pattern of Norman military colonisation in South Wales during the medieval period.

Twyn Castell is a scheduled monument protected by Cadw under reference GM121. View the official record →

About this monument

Questions & answers

What is Twyn Castell?

Twyn Castell is a motte located in Glamorgan, Wales, designated as a scheduled ancient monument under Cadw reference GM121. It is designated a Scheduled Ancient Monument by Cadw under reference GM121.

What period does Twyn Castell date from?

Twyn Castell dates from the medieval period, and is classified as a motte. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Twyn Castell?

Twyn Castell is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is GM121.

What other scheduled monuments are near Twyn Castell?

Several scheduled monuments lie within 10 km, including Garnedd Lwyd (7.2 km), Cross Ridge Dyke & Earthwork on Cefn Eglwysilan (7.7 km), Cornish Type Engine House, Bryngwyn Colliery (8.1 km).

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