The Swan Tower caps the north-western angle of the ward. It is an octagon, but rests upon a base 12 feet high and 40 feet square. The upper part has been removed. The base is solid and the inner floor about 10 feet above the ground outside. The door to the remaining floor is in the gorge. The base of this tower may be either Perpendicular or Decorated. It is said to have been remodelled by Dudley. From the Swan Tower the north wall ran nearly straight 150 yards to Leicester’s Gatehouse, and upon it were two towers, one rectangular and one polygonal. These are gone, as is the wall, excepting one very thick fragment, which seems to have closed the cross ditch at its north end, and probably is provided with a sluice. A little probing and clearing here might bring this into evidence, and settle the breadth of the cross ditch. In front of this wall is the great northern outer ditch of the castle by which this front is protected from Clinton Green. Leicester’s Gatehouse, built about 1570, is a rectangular building 56 feet by 28 feet, with bold octagon turrets at the angles, which rise slightly above the roof. The basement contained the entrance passage and gateway, and above it are two storeys. The windows are square-headed, of two lights and a transom; and, on the whole, the building is a fair example of its period. The passage has been closed and converted into two rooms, entered by a curious lateral porch, of Italian design, which has been added on. Outside are carved the arms of Beauchamp, and the ragged staff is employed as though it was a Dudley cognisance. The panelling of the interiors and a fireplace are curious, and were brought from the castle. A few yards east of this gatehouse are the remains of a buttressed causeway crossing the ditch, here nearly filled up. This looks old, and is probably part of the original entrance. Beyond this, the ditch deepens and reaches Lunn’s Tower, which caps the east angle of the ward.