Saturday, January 03, 2026
A castle and a country house
We are travelling further west this week to Llandeilo in Carmarthenshire and Dinefwr Castle, which is situated on the outskirts of the town.
Dinefwr Castle is a ruined castle overlooking the River Towy. It lies on a ridge on the northern bank of the Towy, with a steep drop of one hundred feet to the river. Dinefwr was the chief seat of the Dinefwr dynasty of the Kingdom of Deheubarth. The castle is a Grade I listed building. I was there a few days ago and, as you can see, the views are spectacular.
As Wikipedia says, tradition relates that a castle was first constructed on this site by Rhodri the Great, but no archaeological remains have been dated from this period:
Dinefwr later became the chief seat of Rhodri's grandson Hywel Dda, first ruler of Deheubarth and later king of most of Wales. Rhys ap Gruffydd, ruler of Deheubarth from 1155 to 1197, is thought to have rebuilt the castle. Giraldus Cambrensis tells a story about a plan by King Henry II of England to assault the castle during a campaign against Rhys. One of Henry's most trusted followers was sent on reconnaissance, guided by a local Welsh cleric, who was asked to lead him to the castle by the easiest route, but instead took the most difficult route he could find, ending the performance by stopping to eat grass with the explanation that this was the diet of the local people in times of hardship. The planned attack was duly abandoned.
On Rhys ap Gruffydd's death the castle passed to his son Rhys Gryg, and the earliest parts of the present castle are thought to derive from this period. Llywelyn the Great of Gwynedd was now extending his influence to this area, and Rhys, finding himself unable to resist, dismantled the castle. Llywelyn however had it restored and held it until his death in 1240. In 1255 Llywelyn the Last gave Dinefwr to Rhys Fychan, then later gave it to Maredudd ap Rhys before later returning it to Rhys Fychan. Maredudd now allied himself to King Edward I of England, and his son Rhys ap Maredudd helped Edward capture Dinefwr in 1277. This Rhys had apparently been promised Dinefwr in return for his help, but Edward did not keep his promise and had Rhys executed in 1291.
The castle now came into English hands, though it is recorded to have been burnt during the rebellion of Llywelyn Bren in 1316. In 1317 it was given to Hugh Despenser, the king's favourite. It was unsuccessfully besieged by the forces of Owain Glyndŵr in 1403. Towards the end of the 15th century the castle was held by Sir Rhys ap Thomas, who carried out extensive rebuilding. In 1531 his grandson Rhys ap Gruffydd was executed for treason and the castle was confiscated by the crown, though the family were later able to recover it.
In 1660 Newton House (pictured) was built nearby and the castle keep modified as a summer house. The remains of the large windows can be seen at the top of the keep, but it burned down in the 18th century. The castle is now owned by the Wildlife Trust of South and West Wales and managed by CADW on their behalf.
As Wikipedia says, tradition relates that a castle was first constructed on this site by Rhodri the Great, but no archaeological remains have been dated from this period:
Dinefwr later became the chief seat of Rhodri's grandson Hywel Dda, first ruler of Deheubarth and later king of most of Wales. Rhys ap Gruffydd, ruler of Deheubarth from 1155 to 1197, is thought to have rebuilt the castle. Giraldus Cambrensis tells a story about a plan by King Henry II of England to assault the castle during a campaign against Rhys. One of Henry's most trusted followers was sent on reconnaissance, guided by a local Welsh cleric, who was asked to lead him to the castle by the easiest route, but instead took the most difficult route he could find, ending the performance by stopping to eat grass with the explanation that this was the diet of the local people in times of hardship. The planned attack was duly abandoned.
On Rhys ap Gruffydd's death the castle passed to his son Rhys Gryg, and the earliest parts of the present castle are thought to derive from this period. Llywelyn the Great of Gwynedd was now extending his influence to this area, and Rhys, finding himself unable to resist, dismantled the castle. Llywelyn however had it restored and held it until his death in 1240. In 1255 Llywelyn the Last gave Dinefwr to Rhys Fychan, then later gave it to Maredudd ap Rhys before later returning it to Rhys Fychan. Maredudd now allied himself to King Edward I of England, and his son Rhys ap Maredudd helped Edward capture Dinefwr in 1277. This Rhys had apparently been promised Dinefwr in return for his help, but Edward did not keep his promise and had Rhys executed in 1291.
The castle now came into English hands, though it is recorded to have been burnt during the rebellion of Llywelyn Bren in 1316. In 1317 it was given to Hugh Despenser, the king's favourite. It was unsuccessfully besieged by the forces of Owain Glyndŵr in 1403. Towards the end of the 15th century the castle was held by Sir Rhys ap Thomas, who carried out extensive rebuilding. In 1531 his grandson Rhys ap Gruffydd was executed for treason and the castle was confiscated by the crown, though the family were later able to recover it.
In 1660 Newton House (pictured) was built nearby and the castle keep modified as a summer house. The remains of the large windows can be seen at the top of the keep, but it burned down in the 18th century. The castle is now owned by the Wildlife Trust of South and West Wales and managed by CADW on their behalf.







