Ancient Monuments

History on the Ground

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Felin Isaf Castle Mound

A Scheduled Monument in Pendoylan (Pendeulwyn), Vale of Glamorgan (Bro Morgannwg)

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Latitude: 51.5045 / 51°30'16"N

Longitude: -3.3547 / 3°21'16"W

OS Eastings: 306071

OS Northings: 179267

OS Grid: ST060792

Mapcode National: GBR HP.JJWR

Mapcode Global: VH6F3.SFWZ

Entry Name: Felin Isaf Castle Mound

Scheduled Date: 6 March 1975

Source: Cadw

Source ID: 3684

Cadw Legacy ID: GM370

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Vale of Glamorgan (Bro Morgannwg)

Community: Pendoylan (Pendeulwyn)

Traditional County: Glamorgan


The monument comprises the remains of a motte and ditch, 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. The motte measures c. 4m high and stands beside the old river bed of the Ely. On the north-west side there is a ramp to the top about 4m wide. The ditch, which survives best on the east, averages 8.5m wide and 0.6m deep. There is no sign of an outer bailey.

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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