FILE- In this Thursday, Feb. 28, 2013 file photo, Pope Benedict XVI greets the crowd from the window of the Pope's summer residence of Castel Gandolfo, the scenic town where he will spend his first post-Vatican days and make his last public blessing as pope. A book of interviews with the Polish Rev. Mieczyslaw Mokrzycki, “Secretary of Two Popes,” released May 2017, has offered some insight into the daily life at the Vatican with John Paul and his German-born successor, Benedict XVI. (AP Photo/Andrew Medichini, File)