Analysis of information sources in references of the Wikipedia article "Палац Кастель-Гандольфо" in Ukrainian language version.
According to Saverio Petrillo, director of the villa, about half the popes since then have followed Pope Urban's lead. Over the centuries, war, political turmoil, illness and just plain not liking the setting accounted for some pontiffs renouncing use of the villa, Petrillo wrote.
