A more detailed account of the reigns of the De Hautevilles will be found in the "Story of Sicily," but before this brief review of their conquests is ended, it is only fair to notice the existing monuments of Norman rule. The remains of Norman architecture, dating back to their time, may still be seen in Palermo and other cities, and give them a romantic interest. There are ruins of monasteries and convents almost without number, and many churches still exist, though sometimes more or less defaced by modern additions and ignorant restoration. The Normans raised the standard of Western forms of architecture here as they did elsewhere, and their simpler buildings make an interesting contrast with Eastern types left by the Saracens. Outside the large cities almost every little town has at least some fragments of Norman masonry, and in Aderno—to note only one instance of the sort—there is a fine Norman castle in excellent preservation, which is used as a prison now. At Troina, a dreary mountain fortress, there is a belfry and part of the wall of a cathedral that Roger I. built in 1078. It was in Troina that he and his wife bravely established their court fifteen years earlier, and withstood a four months' siege from the Saracens. Galfridus, an old chronicler, tells sadly that the young rulers only had one cloak between them, and grew very hungry and miserable; but Eremburga, the wife, was uncomplaining and patient. At last the count was so distressed by the sight of her pallor and evident suffering, that he rallied his men and made a desperate charge upon his foes, and was happily [Pg146] victorious. Galfridus says of that day: "The single hand of Roger, with God's help, did such execution that the corpses of the enemy lay around him on every side like the branches of trees in a thick forest when strewn by a tempest." Once afterward, when Roger was away fighting in Calabria, Eremburga was formally left in command, and used to make the round with the sentinels on the walls every night.