 Complete the following phrase:  Caesars and Guys Towers are residential and may have been inspired by French models for example Bricquebec. Both towers are machicolated and Caesars Tower features a unique double parapet. The two towers are also vaulted in stone on every storey. Caesars Tower contained a grim basement dungeon; according to local legend dating back to at least 1644 it is also known as Poitiers Tower, either because prisoners from the 