Music of Vatican City a result, reformers like Palestrina revised the rules behind Gregorian chanting, which were printed by the Medici Press in Rome; these reforms continued to be followed to the present day. A traditional musical instrument was the pipe organ. After the end of the Papal States the Popes' ability to sponsor composers and musicians waned. However it did not end entirely nor did interest in the subject. Pope Pius X and Pope Pius XII both wrote on the subject. In modern times John Harbison and Gilbert Levine have composed or conducted for the Vatican. Although not of the Vatican a Christmas
Rescue of Jews by Catholics during the Holocaust prisoners of war and criminal offenders, people of a foreign race or descent". Resistor priests active in rescuing Jews include the martyrs Bernard Lichtenberg and Alfred Delp, and laywomen Gertrud Luckner and Margarete Sommer used Catholic agencies to aid German Jews, under the protection of Bishops such as Konrad von Preysing. In Italy, the popes lobbied Mussolini against anti-Semitic policies, while Vatican diplomats, among them Giuseppe Burzio in Slovakia, Filippo Bernardini in Switzerland and Angelo Roncalli in Turkey rescued thousands. The nuncio to Budapest, Angelo Rotta, and Bucharest, Andrea Cassulo, have been recognised by Yad Vashem. The Church played an