Sec. 55. Sometimes, as at Oundle, the tower was rebuilt with a view to the reconstruction of the whole church. But, as also at Oundle, the design was often abandoned, or was altered. The magnificent tower of St Michael's, Coventry, was built, between 1373 and 1394, at the west end of an older nave: its spire was not begun till 1430. Whether the rebuilding of the nave was contemplated when the tower was begun, it is impossible to say. A new nave was actually begun in 1432, and finished in 1450. A thoroughfare immediately south of the church prevented extension on that side. The old south porch was retained in place as the principal entrance, so that the line of the wall of the south aisle follows closely that of the original church. The new south arcade was set out, not in a line with the south-east buttress of the tower, but somewhat to the north of it, so that the buttress is external; while, for the width of the nave, a space approximating to twice the internal breadth of the tower was taken. The tower is thus placed almost wholly south of the central axis of the nave produced westward. Here, once more, we may note the influence of site on the plan. Sec. 56. The people's entrance to the church was ordinarily through a porch, covering the north or south doorway of the nave. The south doorway is usually covered by a porch. Frequently, as at Hallaton in Leicestershire, or Henbury in Gloucestershire, there is a north as well as a south porch. At Warmington, near Oundle, where there is a beautiful doorway in the west tower, the vaulted south porch is the principal entrance; but there is also a somewhat smaller north porch, also vaulted. The chief porch at Grantham is on the north side; but there is also a large porch on the south. At Newark, there is only a south porch, on the side of the church next the market place. The south porch of St Mary Redcliffe, at Bristol, is the ordinary entrance of the church; but the chief entrance of the building, until the fifteenth century, was on the north side, at the head of the abrupt slope towards the city. In the fourteenth century, this entrance was covered by a large and lofty octagonal porch, approached by a flight of steps. There is an octagonal south porch at Chipping Norton, and a hexagonal south porch at Ludlow. The magnificent porches of the fifteenth century, as at Burford in Oxfordshire, Northleach in Gloucestershire, Worstead in Norfolk, Walberswick in Suffolk, St Mary Magdalene's at Taunton, or Yatton in Somerset, are usually on the south side of the church.