Chicago Tribune photographer Brian Cassella captures the scene ahead of Pope Leo XIV’s installation in Vatican City.

Leo, the first American and second Latin American pope, celebrated his inaugural Mass at the Vatican after waving to the ...

Chicago native Pope Leo XIV called for unity in an increasingly divided world Sunday during his inaugural Mass in St. Peter’s ...

Robert Prevost, the Chicago-born missionary, was elected the first pope from the United States in the history of the Catholic ...