Tomen yr Allt
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| Location | Near Llanfyllin |
|---|---|
| Region | Powys, Wales |
| Type | Motte and Bailey Castle |
| Part of | Kingdom of Powys until 1160, then Principality of Powys Wenwynwyn. |
| Length | 40 m |
| Width | 40 m |
| History | |
| Material | Earthwork and timber |
| Founded | Possibly 10th century |
| Abandoned | 1257 (keep destroyed) |
| Periods | Medieval |
| Satellite of | Cantref of Mechain |
| Associated with | Lords of commote of Mechain Uwch Coed |
| Events | Put under siege by Llywelyn ap Gruffudd in 1257 |
| Site notes | |
| Excavation dates | 1978 |
| Archaeologists | Clwyd-Powys Archaeological Trust |
| Condition | Ruin - only earthworks remaining and very overgrown |
| Designation | Cadw scheduled monument |
Tomen yr Allt (or Domen yr Allt) ("tomen ar hallt" is modern Welsh for ′mound on the wooded hillside′) was a Medieval motte and bailey defensive castle near Llanfyllin in Powys, Wales.[1][2]
Description
The site is over 40m in diameter, the central man-made earthwork mound (motte) is about 13m by 10m and nearly 10m high. There is a continuous stony, ditch, which is doubled on the north-east side, away from the natural slope of the hill.[3][4] The bank is flattened where it joins fields on the south-east side and no bailey is apparent in that section. Most of the earthworks remain and the keep of the castle was probably timber, as CPAT (Clwyd-Powys Archaeological Trust) found a piece of daub and the remains of a burnt layer in 1978.[1][3][5] The site is a Cadw scheduled monument.[2]
History
Tomen yr Allt was the caput of the commote of Mechain Uwch Coed in the cantref of Mechain.[6]
In 1160, when the Kingdom of Powys was divided, Mechain became part of the principality which later became known as Powys Wenwynwyn. By 1208 the region was controlled by Llywelyn the Great, after his death in 1241 his heir had to come to terms with Henry III of England, as a result Powys Wenwynwyn passed to Gruffydd ap Gwenwynwyn who was allied to Henry III. From 1255 Llywelyn ap Gruffudd, the grandson of Llywelyn the Great and the Prince of Gwynedd, began to expand his territory.
In May 1257, Llywelyn ap Gruffudd was reported to have put the "castle of Bodyddon" under siege (Tomen yr Allt is less than 1 km east of Bodyddon and overlooks it). The intention was likely to bring the lords of Mechain to submission, and by 1258 they were indeed allied to Llywelyn.[7] Presumably Tomen yr Allt is the "castle of Bodyddon" to which the reports refer, which was destroyed in 1257.[1][3][4]
The site overlooks Bodfach Hall approximately 1 km south-east in the hamlet of Bodfach near Llanfyllin. Tomen yr Allt and the wooded area around it, known as Coed yr Allt, is on land which belonged to the historical estate of the hall.[8] The original building on the site of the hall may have been constructed to replace the castle.[9]
References
- ^ a b c "Tomen yr Allt Motte, Llanfyllin". Gatehouse. Retrieved 23 April 2015.
- ^ a b "Scheduled Ancient Monuments".
Excel spreadsheet: SAMs by UA.xls: SAM MG027
- ^ a b c "Tomen Yr Allt Motte". CPAT.
See also PDF file linked on this summary page
- ^ a b "DOMEN-YR-ALLT/TOMEN-YR-ALLT". Coflein. Coflein.
- ^ "POWYS Archaeological Record Site No. 1476". CPAT. 1976.
- ^ Richards, Robert (1949). "Y domen Gastell". Montgomeryshire collections relating to Montgomeryshire and its borders. 51: 72. Retrieved 15 April 2015.
- ^ Smith, J Beverley (2014). Llywelyn Ap Gruffudd: Prince of Wales. University of Wales Press. p. 99.
- ^ An Inventory of the Ancient Monuments in Wales and Monmouthshire: I - County of Montgomery. Royal Commission on the Ancient and Historical Monuments of Wales. 1913.
- ^ "BODFACH HALL". Coflein. Retrieved 22 April 2015.