Joanna I of Naples
Queen Joanna I of Naples officially acknowledged Clement VII as the lawful pope against Urban VI on 22 November 1378. She even gave shelter to Clement VII, who had been expelled from Rome, and helped him to leave Italy for Avignon in May 1379. In retaliation, Pope Urban VI excommunicated the queen and declared her deprived of her kingdom in favor of Charles of Durazzo and his wife Margaret on 17 June.