Ancient Monuments

History on the Ground

This site is entirely user-supported. See how you can help.

Domen Seba (or Y Tomen Fawr) Castle Mound

A Scheduled Monument in Llangeler, Carmarthenshire (Sir Gaerfyrddin)

We don't have any photos of this monument yet. Why don't you be the first to send us one?

Upload Photo »

Approximate Location Map
Large Map »

If Google Street View is available, the image is from the best available vantage point looking, if possible, towards the location of the monument. Where it is not available, the satellite view is shown instead.


Latitude: 52.0062 / 52°0'22"N

Longitude: -4.4407 / 4°26'26"W

OS Eastings: 232570

OS Northings: 237007

OS Grid: SN325370

Mapcode National: GBR D8.HZ00

Mapcode Global: VH3KM.ZT7Y

Entry Name: Domen Seba (or Y Tomen Fawr) Castle Mound

Scheduled Date: 21 September 1933

Source: Cadw

Source ID: 1442

Cadw Legacy ID: CM020

Schedule Class: Defence

Category: Motte

Period: Medieval

County: Carmarthenshire (Sir Gaerfyrddin)

Community: Llangeler

Traditional County: Carmarthenshire


The monument comprises the remains of a motte and bailey castle, a military stronghold built during the medieval period (c. 1066 -1540 AD). A motte and bailey castle comprises a large conical or pyramidal mound of soil or stone (the motte) surrounded by, or adjacent to, one or more embanked enclosures (the bailey). Both may be surrounded by wet or dry ditches and could be further strengthened with palisades, revetments, and/or a tower on top of the motte. This monument stands in the corner of a grass field known as Parc y Domen near Bwlch y Domen farm. The motte and encircling ditch are well preserved, except for a slight disturbance on the NE side, and the bailey to the south is only very faintly traceable. It extends c. 100ft from the lip of the ditch.

The monument is of national importance for its potential to enhance our knowledge of medieval defensive organisation. The well-preserved monument forms an important element within the wider medieval context and the structure itself may be expected to contain archaeological information relating to chronology, building techniques and functional detail.

The scheduled area comprises the remains described and areas around them within which related evidence may be expected to survive.

Source: Cadw

Other nearby scheduled monuments is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact for any queries related to any individual ancient or schedued monument, planning permission related to scheduled monuments or the scheduling process itself. is a Good Stuff website.