The Vatican announced newly elected Pope Leo XIV would be inaugurated officially into the papacy on Sunday, May 18. "The Holy See Press Office announced the upcoming schedule for the newly elected Pope Leo XIV.

His inaugural Mass will be held in St.

Peter's Square on Sunday, May 18 at 10 am Rome time," Vatican News stated.

The Pope's inauguration ceremony, also known as the Papal Inauguration Mass, is a significant event in the Roman Catholic Church that formally marks the beginning of a new pope's papacy.