Countless images of Saint Catherine are depicted in art, especially in the late Middle Ages, which is also the time that the account of Saint Catherine's Mystical Marriage makes its first literary appearance. She can usually be easily recognised as she is richly dressed and crowned, as befits her rank as a princess, and often holds or stands next to a segment of her wheel as an attribute. She also often carries either a martyr's palm or the sword with which she was actually executed.