Ancient Monuments

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Castell Meredydd

A Scheduled Monument in Graig, Newport (Casnewydd)

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Latitude: 51.5922 / 51°35'31"N

Longitude: -3.1195 / 3°7'10"W

OS Eastings: 322542

OS Northings: 188739

OS Grid: ST225887

Mapcode National: GBR J0.BXQQ

Mapcode Global: VH6DV.W76S

Entry Name: Castell Meredydd

Scheduled Date: 14 February 1973

Source: Cadw

Source ID: 2410

Cadw Legacy ID: MM186

Schedule Class: Defence

Category: Castle

Period: Medieval

County: Newport (Casnewydd)

Community: Graig

Traditional County: Monmouthshire


The monument consists of the remains of a castle, dating to the medieval period. The castle remains occupy a dramatic position on top of two rocky outcrops on a steep slope overlooking the Rhymney valley. On the E outcrop are the remains of a circular keep around 10m in diameter, comprising two stretches of stone walling up to 2.2m high. The W outcrop is rectangular in plan, measuring 12m E/W by 7m, with a level summit. . To the W of the W outcrop is a wall which runs E/W and then turns N and becomes a stony bank around 1m high. At the N end of the bank are the remains of a rectangular building, beyond which the tony bank continues NE towards the garden of the modern cottages. The castle is thought to have been built by Maeredydd Gethin, Prince of Gwynllwg before 1201, and is the only Welsh castle in Gwent.

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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