Ancient Monuments

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Llangibby Castle Mound

A Scheduled Monument in Llangybi, Monmouthshire (Sir Fynwy)

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Latitude: 51.6714 / 51°40'17"N

Longitude: -2.9131 / 2°54'46"W

OS Eastings: 336955

OS Northings: 197353

OS Grid: ST369973

Mapcode National: GBR J9.5V9S

Mapcode Global: VH7B1.G8B1

Entry Name: Llangibby Castle Mound

Scheduled Date:

Source: Cadw

Source ID: 584

Cadw Legacy ID: MM110

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Monmouthshire (Sir Fynwy)

Community: Llangybi

Traditional County: Monmouthshire


The monument comprises the remains of a motte and ditch, dating to the medieval period (c. 1066 -1540 AD). The motte consists of a circular mound, 80m in diameter at the base and 3.5m high, with a flat summit, 40m in diameter, enclosed by a low bank. The mound is surrounded by a steep-sided ditch and bank. The bank surrounding the summit is up to 0.8m high on the inside. The surrounding ditch is 2m wide and between 2m and 4m deep, and the outer bank is up to 1.5m high. The ditch and outer bank are not present on the N side of the mound, and may have been backfilled and truncated during the construction of the adjacent farm track. On the NW side there is a gap in the bank surrounding the summit, while on the SE side there is a gap in the outer bank. The motte is thought to be the forerunner of the 13th century Llangibby Castle (MM109), located 400m to the W. On 19th century maps the summit of the motte is described as a bowling green indicating that the top of the mound may have been levelled.

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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