Traditionally, women meeting the pope are expected to wear black with a veil, symbolizing modesty and respect. However, a rare exception exists: the “privilège du blanc” (privilege of white), granted only to a few Catholic royal women. This honor, symbolizing purity and peace, allows them to wear white during papal audiences—but not during funerals.

Only seven royal women currently hold this privilege, including Queen Letizia and Queen Sofia of Spain, Queen Mathilde and Queen Paola of Belgium, Grand Duchess María Teresa of Luxembourg, Princess Marina of Naples, and Princess Charlene of Monaco. Despite evolving dress codes under Pope Francis, the rules around mourning attire remain strict.