I n 1402, Rhys ap Gruffydd ap Llywelyn Foethus was appointed constable for life. The following year, Owain Glyndwr , the infamous Welsh hero, was allowed use of Dryslwyn Castle as his base for incursions against the castles at Dinefwr and Carreg Cennen. In the mid-1400's the castle was deliberately dismantled by English troops, and a fire soon completely devastated any remaining structures. T oday, the castle seems a random jumble of ruined buildings. However, closer examination reveals much of interest.
Several buildings are still visible amongst the rubble and low mounds which ring the area.
Welsh Historic Monuments . While it will never be able to compete with the enormity of its mightier siblings, such as Conwy or Caerphilly, it possesses all the elements of a typical castle, and was erected in a uniquely Welsh manner. This castle exemplifies the intelligence of strategic placement, and the value of modern archaeology. Dryslwyn Castle is a most dramatic site, and worthy of our continued admiration. It is located 5 miles west of Llandeilo on the B4297, which connects the A40 and the B4300 roads linking Carmarthen and Llandeilo.