About 150 official delegations are expected at the formal installation Mass for Pope Leo XIV. Sunday's ceremony in St.

Pope Leo XIV, the first American pontiff for the Roman Catholic Church, will celebrate his inaugural mass on Sunday, ...

Born in Chicago, the 69-year-old pontiff spent many years as a missionary in Peru and also has Peruvian citizenship, meaning ...

As part of the ceremony, Leo will also formally receive two items as he takes up the papacy: a liturgical vestment known as a ...