"The Chief Rabbi of Rome, Israel Zolli, also made a statement of thanks: “What the Vatican did will be indelibly and eternally engraved in our hearts. . . . Priests and even high prelates did things that will forever be an honor to Catholicism.”[19]
After the war, Zolli became a Catholic and, to honor the Pope for what he had done for the Jews and the role he had played in Zolli’s conversion, took the name “Eugenio”—the Pope’s given name—as his own baptismal name. Zolli stressed that his conversion was for theological reasons, which was certainly true, but the fact that the Pope had worked so hard on behalf of the Jews no doubt played a role in inspiring him to look at the truths of Christianity.
Lapide writes: "When Zolli accepted baptism in 1945 and adopted Pius’s Christian name of Eugene, most Roman Jews were convinced that his conversion was an act of gratitude for wartime succor to Jewish refugees and, repeated denials not withstanding, many are still of his opinion. Thus, Rabbi Barry Dov Schwartz wrote in the summer issue, 1964, of Conservative Judaism: ‘Many Jews were persuaded to convert after the war, as a sign of gratitude, to that institution which had saved their lives.’ "[20]