chunk: In the main plot, William the Conqueror falls in love with the image on the shield that the Marquess of Lubeck carries in a tournament. In disguise, William travels to the court of King Zweno of Denmark to see the original of the portrait; once there, he falls in love with Marianna, a Swedish princess held hostage at the Danish court. Marianna, however, is faithful to her suitor, Lubeck, and has no interest in William; but the king's daughter Blanche becomes infatuated with the newcomer. The ladies stage a plot, in which William absconds with the woman he thinks is Marianne; in doing so he gets in trouble with Zweno, who is under the same mistaken impression. When the woman's true identity is revealed â she is of course Blanche â William accepts her as his wife. Lubeck and Marianne are left, happily, to each other.