Position of the city.
The ducal castles. those suburbs had passed the river; but the city itself, the walled space to be attacked and defended in wartime, was still of the same extent as it had been in the days before Rolf and before Chlodwig. The rectangular space marking the Roman camp stretched on its southern side nearly to the Seine, whose stream, not yet fenced in by quays, reached further inland on that side than it now does. Rouen is essentially a river city, not a hill city. The metropolitan church does indeed stand on sensibly higher ground than the buildings close to the river; but to one fresh from Le Mans or Chartres the rise which has to be mastered seems trifling indeed. For a hill city the obvious site would have been on the natural akropolis supplied by the height of Saint Katharine to the south-east. Yet Rouen is a city of the mainland; the islands which divide the waters of the Seine must have been tempting points for Rolf in his Wiking days; but even the largest of them, the Isle of the Cross, was hardly large enough for a town to grow upon it. Of the walls of Rothomagus not a fragment is left; yet the impress of a Roman chester is hard to wipe out; it is still easy to trace its lines among the streets and buildings of the greatly enlarged mediæval and modern city. Frightful as has been the havoc which the metropolis of Normandy has undergone in our own time, mercilessly as the besom of destruction has swept over its ancient streets, churches, and houses, the dæmon of modern improvement has spared enough to enable us, if not to tell the towers, yet in idea to mark well the bulwarks, of the city where the Conqueror reigned. Near the south-west corner of the parallelogram, not far from the river-side, had stood the earlier castle of the Dukes. Its site in after times became the friary of the Cordeliers, a small fragment of whose church, as well as another desecrated church within the castle
