These are the guns that could have been used to defend this castle. I don't think this castle was ever attacked--you can see why! In the period of these wars, the main strategy to take a castle such as this was to surround it with sufficiently many soldiers and wait long enough to starve those inside into surrender. Of course, you had to be able to feed all those soldiers all that time. Inside, they had a big stockpile of food and weapons, so you might have to wait a long time.