(Gregorio Borgia | AP file photo) In this Tuesday, Dec. 8, 2015. filer, Pope Emeritus Benedict XVI attends a Mass before the opening of the Holy Door of St. Peter's Basilica, formally starting the Jubilee of Mercy, at the Vatican. Emeritus Pope Benedict XVI has fallen ill after his return from a trip to his native Bavaria to visit his brother, who died a month ago, a German newspaper reported Monday.