 Constance, almost 30-year-old, was said to have been confined in Santissimo Salvatore, Palermo as a nun since childhood to keep celibacy due to a prediction that "her marriage would destroy Sicily" despite having become the sole legitimate heir to William as the marriage of the latter had remained childless; and, after the latter's death in November 1189, Henry had the opportunity of adding the Sicilian crown to the imperial one.He and Constance were married on 27 January 1186 in Milan.In the Hohenstaufen conflict with Pope Urban III, Henry moved to the March of Tuscany, and with the aid of his deputy Markward von Annweiler devastated the adjacent territory of the Papal States.