Pope Leo XIV celebrated Mass on Sunday near the tomb of St. Peter, hours before he was to deliver his first Sunday noon blessing from the loggia of St. Peter’s Basilica

Pope Leo XIV, the first American leader of the Catholic Church, previously known as Robert Francis Prevost, returned to the Sistine Chapel the day after his election to deliver a mass for the College of Cardinals, where he described his role as both a cross to bear and a blessing and urged church leaders to make themselves “small.”