The four-year cycle of celebrations for the solemnity of the bishop of Hippo, patron and co-patron of the diocese, concludes in Pavia, the city that holds the relics of Saint Augustine in the basilica of San Pietro in Ciel d'Oro. The closing Solemn Pontifical Mass, at 6:30 pm, is presided over by Cardinal Pierbattista Pizzaballa, Latin Patriarch of Jerusalem; afterward the Saint's relics are returned to the marble Ark. The celebrations, opened on August 25 with a day of thanksgiving for Pope Leo XIV's pastoral visit to Pavia on June 20, remain marked by the special bond between the city and the Pontiff, an Augustinian friar, who before the Saint's tomb had invited the Church to walk together, without divisions.