A Tour of Oystermouth Castle

Adapted from the work of Ken Lightfoot
Sketches by Shirley Morgan


Plan of Oystermouth Castle


1.Outside the entrance, notice the curved section of the wall on either side, showing the gateway was designed to be flanked by two round towers. Look carefully at the curved walls. Do you think that the towers were ever built? If so, what do you think might have happened to them?

2.Going into the castle, look at the big vertical groove in either wall of the gate passage and the two holes above. What do you think these were used for?

3.Looking back to the gatehouse from inside the courtyard, you can reach the rooms above the gateway by a set of steps to the right or a spiral stairway on the left. Thinking back to the last question, what do you think the room above the gateway would have been used for? Take a short walk along the walls on either side of the gatehouse. The windows and battlements give excellent views of Swansea Bay and Mumbles. Why would this be necessary? Could equally good views have been obtained by building the castle somewhere else? If so, why do you think it was built here?

4.Back down in the courtyard, walk through the ruins of a large building which stood against the east curtain wall. High up on the north east corner of this building, you should be able to spot two long, diagonal patches of mortar roof flashing. What do these suggest about this part of the castle?

5.Now look at the tall chapel block. The large windows date from a later period than the original building. Can you see the evidence of the height of the original building? Why do you think it was made higher? Now move inside the building. How many floors can you see? Which floor held the chapel? Does this help you to answer the earlier question?

6.Leave the chapel block and turn right across the courtyard. The way into the central block - the oldest part of the castle - is through an arched doorway. The wall to the right of this doorway shows evidence of another doorway which has been blocked and converted into an arrow slit. Why do you think this was done? What does it tell you about the early history of the castle?

7.Walk through the doorway into the oldest building in the castle, the keep. It has been altered a great deal. Look at the stonework of this original building, especially around the doors in the far left corner - how is it different from the later stonework (eg. the chapel block wall and windows)? How do we know that the keep had several floors? We are told in the guide book that "The Great Hall of the castle once occupied the whole floor above". Can you find evidence to support this view?

8.Now go through the arched doorway into the northern half of the central block. Notice the fine fireplaces. Who might have lived in this part of the castle? Now look at the straight joint forming the corner of the room beyond the fireplace. If this east wall had been part of the original keep, you would expect all of the corner stones to be 'bonded' together. What does this tell you about the alterations to the castle? Clue: the 'later' design of the chapel block. A short passage in the north west corner of the room leads to the north west block.

9.The passage takes you on to the highest of the three surviving floor levels in the north west block. A small ledge runs around the walls a few feet above the present floor - this once supported timber floor beams - which shows that the floor level has been altered. A small door in the south east corner takes you into a passage in the thickness of the wall leading back to the keep. Why would this passage have been necessary?

10.Leaving the central block you will find yourself back in the main courtyard. Turn right and you will see a small guardroom built up against the keep wall. Walk northward along the narrow open-air passage, noticing the arrow slits along the wall on your right. What do these suggest about the building on the left side of the passage?

11.The corridor leads straight to a room with a barrel-vaulted roof. In the centre is a large masonry pillar supporting the floor above. This is the middle floor level of the north west block. The pillar is a bit of a mystery - what do you think the pillar was used for? Clue: it may have something to do with alterations to the room above - see 9.

12.Now walk a little way back along the open corridor and go into the building on the right, down a flight of steps. Look at the fireplaces and privies on each floor. What do these tell you about the use of the building? Who do you think lived there? Clue: how do the fireplaces compare with those in the keep?

13.Continue back along the open corridor and turn right up a flight of steps to the upper floor of a building. There is a large window at either end. Left of the entrance, a large blocked opening - possibly another window - can be traced in the stonework of the east wall.

14.Underneath are two barrel-vaulted store rooms, whose windows have been blocked.

15.Now walk back towards the gatehouse, and finish by looking at the long narrow building which stood against the south west curtain wall. Look at the three large fireplaces. What do these suggest about what the building was used for?