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Fragmentary – yet evocative – remains of a castle laid low by conflict

Founded in the 13th century on an isolated hill in the verdant Tywi Valley, Dryslwyn was once an important seat of the ancient south Wales kingdom of Deheubarth.

Not much is known about its early history, but in 1287 it was the scene of a significant conflict between Welsh and English forces. In response to an uprising by Welsh lord Rhys ap Maredudd, 11,000 English troops were dispatched to lay siege to the castle. The conflict lasted two weeks as siege engines and sappers (soldiers with engineering skills, including tunnelling) chipped away at the fortress’s defences. The attackers eventually brought down a large section of the walls and the castle fell into the hands of the English crown.

Opening times

Daily 10am–4pm

Last admission 30 minutes before closing

Closed 24, 25, 26 December and 1 January


Car park icon Drone policy icon No smoking icon

Public car park opposite main entrance with 15 spaces, no dedicated disabled parking bay.

Please read our policy information about flying drones at Cadw monuments: read the guidance

Smoking is not permitted.


B4297, from the A40(T) or the B4300
Ffairfach 9.5km/5.7mls

Postcode SA32 8RW

For further information, please contact: Traveline Cymru on 0871 200 2233 or National Rail Enquiries on 08457 48 49 50.