It was built in about the 1220s by one of the princes of the kingdom of Deheubarth, and changed hands several times in the struggles between the Welsh and English over the ensuing centuries.
It is considered one of the most important remaining structures built by a Welsh chieftain and is a Grade I listed building.
Perched on the top of an isolated, rocky hill above the Towy Valley, Dryslwyn Castle occupies a splendid defensive position.
Neighbouring Welsh kingdoms and the English took advantage of this to infiltrate Deheubarth and it was around this time that Dryslwyn Castle was built.
[1] It may have been that Rhys Gryg built the two fortresses of Dryslwyn and Dinefwr in order to provide legacies for his two sons after his death, which happened in 1234.
However, in 1287 he revolted against English rule, and the castle was besieged and captured after a three-week siege by the forces of King Edward I.
[1] The castle of limestone walls was built in the 1220s, and was systematically demolished in the early fifteenth century, presumably in an attempt to stop Welsh rebels using it again.