Pope Leo XIV’s inaugural Mass at St. Peter’s Square is an ancient ritual filled with symbolism that connects back to Peter, Jesus’ apostle, and his special mission as head of the Catholic Church.

Pope Leo XIV officially opened his pontificate by taking his first popemobile tour through the piazza near St. Peter's Basilica in Vatican City.

Pope Leo XIV will formally begin his ministry as bishop of Rome with a liturgy steeped in tradition and rich in symbolism May 18.