Father Renzo Pegoraro, who had served as chancellor of the academy since 2011, succeeds Archbishop Vincenzo Paglia, who reached the mandatory retirement age of 80 in April.

“Every noble cause in our American pedigree was inspired by faith,” Cardinal Dolan said.

Two stamps, with values of 1.25 euros ($1.42) and 2.45 euros ($2.78), feature photos of Pope Leo on May 8 when he appeared on the balcony of St. Peter's Basilica immediately after his election.