«ITALIAN PRINCES SEE POPE.; Duke and Duchess of Genoa Among Seven of House of Savoy Present.». The New York Times(en inglés) (The New York Times Building, 620 Eighth Avenue, New York City, 10018: The New York Times Company). 29 de diciembre de 1929. ISSN0362-4331. OCLC1645522. Consultado el 8 de junio de 2016. «Pope Pius received additional Princes of the ruling House of Savoy in audience today. They included the Duke and Duchess of Genoa, the Prince of Udine, the Duke of Pistoia, the Duke of Bergamo, Princess Maria Adelaide and the Duke of Ancona.»
«ITALIAN PRINCES SEE POPE.; Duke and Duchess of Genoa Among Seven of House of Savoy Present.». The New York Times(en inglés) (The New York Times Building, 620 Eighth Avenue, New York City, 10018: The New York Times Company). 29 de diciembre de 1929. ISSN0362-4331. OCLC1645522. Consultado el 8 de junio de 2016. «Pope Pius received additional Princes of the ruling House of Savoy in audience today. They included the Duke and Duchess of Genoa, the Prince of Udine, the Duke of Pistoia, the Duke of Bergamo, Princess Maria Adelaide and the Duke of Ancona.»
romasette.it
«Romasette». Archivado desde el original el 9 de agosto de 2016. Consultado el 8 de noviembre de 2014.
«Romasette». Archivado desde el original el 9 de agosto de 2016. Consultado el 8 de noviembre de 2014.
worldcat.org
«ITALIAN PRINCES SEE POPE.; Duke and Duchess of Genoa Among Seven of House of Savoy Present.». The New York Times(en inglés) (The New York Times Building, 620 Eighth Avenue, New York City, 10018: The New York Times Company). 29 de diciembre de 1929. ISSN0362-4331. OCLC1645522. Consultado el 8 de junio de 2016. «Pope Pius received additional Princes of the ruling House of Savoy in audience today. They included the Duke and Duchess of Genoa, the Prince of Udine, the Duke of Pistoia, the Duke of Bergamo, Princess Maria Adelaide and the Duke of Ancona.»
