Overview

• Pope Leo XIV, born Robert Francis Prevost, was officially inaugurated on May 18, 2025, in a solemn Mass at St. Peter's Square, attended by thousands of faithful and dignitaries.
• European monarchs, including Queen Letizia of Spain, Queen Mathilde of Belgium, and Princess Charlène of Monaco, participated in the ceremony, signifying strong Church–state ties.
• Catholic queens and princesses wore white mantillas and dresses under the Privilège du blanc tradition, symbolizing their close connection to the Church, while other royals adhered to black attire.
• The inauguration follows the April 21 burial of Pope Francis I and marks a return to traditional Vatican practices, with Pope Leo XIV set to reside in the Apostolic Palace after renovations are complete.
• This event underscores Pope Leo XIV's commitment to upholding Church traditions while navigating his leadership as the first American pontiff.