sentences:  The Cleves family seat is the Schwanenburg, the Swan Castle, with its massive square tower, the Schwanenturm, the Tower of the Knights of the Swan, which is immortalized in Richard Wagner's opera, "Lohengrin".The first two full page miniatures celebrate her illustrious lineage.The first page shows Catherine of Cleves kneeling before the Virgin and the Christ Child, who take a personal interest in her salvation.