 The standing parts of the parapet, remodelled in the 1620s, show that the corners of the tower were topped by corbelled bartizans (turrets).Above the main door on the west, and the postern to the east, are machicolations, narrow slots through which objects could be dropped on attackers.The western door is also protected by its own ditch and drawbridge, accessed from a cobbled "Inner Close" separated from the main bailey by a gate.