During the Tudor period, Swansea Castle’s function shifted from a defensive fortress to more of an administrative center and residence. However, like many medieval castles, it gradually fell into decline due to changes in military technology, such as the introduction of gunpowder and artillery, which rendered traditional castles less effective.
Parts of Swansea Castle were dismantled or repurposed, and over time much of the castle was neglected or destroyed. By the 17th century, the castle was largely in ruins, with only fragments of walls and foundations remaining visible.
Swansea Castle in the Civil War
During the English Civil War (1642–1651), Swansea Castle briefly regained military significance. The conflict between Royalists (supporters of King Charles I) and Parliamentarians affected Wales as well.
Swansea Castle was used as a garrison for Royalist forces. However, it did not witness major battles or sieges, and the war’s impact on the castle was limited. After the war, the castle’s military relevance continued to decline. shutdown123