[1] It could be granted by hereditary right, as it was to the heads of two of the famous Roman families of papal nobility, the Orsini and the Colonna.
[5] During canonization ceremonies, a special candle, painted with the likeness of the new saint and often scenes from their life, was presented by the Postulator of the Cause to the Prince Assistant.
[7] In January 1958, Pius XII relieved Filippo Orsini of the title after his extramarital affair with English actress Belinda Lee was made public.
[8] In 1962, Pope John XXIII appointed Alessandro Torlonia as the new Prince assistant, as he wanted a complement of two to serve as Custodians of the Second Vatican Council.
Torlonia had previously served as the lay advisor to the Pontifical Commission for Vatican City State.