At Sunday Mass, the landmark, Gothic-style church - the focal point of Catholicism in the most populous U.S. city - was brimming with worshippers eager to celebrate the unexpected achievement of Chicago native Robert Prevost, now known as Pope Leo XIV.

A special prayer was delivered at Holy Name Cathedral Sunday for Pope Leo XIV. The church held its first Sunday mass since the pope was elected on Thursday. Many who attended said they are praying for unity.

Pope Leo XIV has taken the reins as leader of the Catholic Church, starting his first day as Pontiff with a mass at the Sistine Chapel, during which he called his election both a cross and a blessing.