Pierre has attended the glamorous event in the past. Last year, he sported a white tux and black bow tie to the ball. While it's unclear why Pierre missed the 2025 event, it was announced last ...

Caroline's daughter, Charlotte Casiraghi was seen walking arm-in-arm down the red carpet with her sister-in-law, Beatrice Borromeo, who is married to Charlotte's brother, Pierre Casiraghi.