High Quality Content by WIKIPEDIA articles! Haverfordwest Castle is a castle located in the town centre at Haverfordwest, Pembrokeshire, south Wales, located in a naturally defensive position at the end of a strong, isolated ridge. The castle was established during Norman times in 1120 but much of the architecture remaining today is dated to 1290. For centuries the castle was an English stronghold. There are several other notable castles in area; Wiston Castle lies 6 miles (9.7 km) to the northeast and Pembroke Castle lies 12 miles (19 km) to the south.