 Construction was likely continued by his son Aymer (1296–1324), but the walls may not have been completed as there is a 1377 commission that the constable of the castle was charged to 'survey, repair, and fortify the castle and town of Pembroke'.A century later, money was allocated for 'making a stone wall on the south side of the town of Pembroke' in 1479–80, but this may be interpreted as a repair or rebuild of the existing wall, completion of a missing section of wall or the strengthening of the wall, as was done with the Tenby town walls at about the same time by Jasper Tudor, Duke of Bedford.The town walls, built of limestone rubble, had three gates, of which only fragments survive of the West Gate.