The 2025 Rose Ball didn’t disappoint. The Grimaldi family dazzled at the Salle des Étoiles in the Sporting Monte-Carlo, showcasing some of their most stunning appearances to date. Caroline of Monaco stayed true to her signature elegance in a white gown, accented with a vintage brooch. Charlotte Casiraghi went for classic black, while Alexandra of Hanover, Beatrice Borromeo, and Tatiana Santo Domingo brought a bold splash of color to the night.
© David Niviere/Getty ImagesAlexandra of Hanover’s pink gown
© Getty ImagesThe youngest daughter of Caroline of Monaco—and Charlotte Casiraghi’s sister—has clearly inherited her mother’s love for fashion. Staying true to her family’s signature style, the 25-year-old royal chose a bubblegum pink, Disney princess-style gown for the evening.
© Getty ImagesAlexandra, who attended with her boyfriend, German-born Ben-Sylvester Strautmann, wore a V-neck dress with draped sleeves that fell softly over her arms, a corset-style bodice with fine pleating, and a flared skirt. From Giambattista Valli’s Spring-Summer 2025 Haute Couture collection (one of her favorite designers), the gown also featured delicate, hand-crafted floral embellishments at the hips—details that made it one of her most striking looks yet at the Rose Ball.
© Getty ImagesShe completed the outfit with a showstopping necklace from Cartier’s Pluie collection: 492 brilliant-cut diamonds set in white gold, valued at around $383,000.
© David Niviere/Getty ImagesBeatrice Borromeo’s red cape dress
Pierre Casiraghi's wife, Beatrice Borromeo, also made color the focal point of her ensemble. She opted for a striking blood-red gown with a V-neckline, a pleated bodice flowing into an elegant cape, and a sheer floor-length skirt.
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© Getty ImagesTo trace the dress, you’d have to go back to January 20, 2020—it's from Dior’s Spring/Summer 2020 Haute Couture collection shown in Paris.
Metallic shine for Tatiana Santo Domingo
© AFP via Getty ImagesTatiana Santo Domingo, wife of Andrea Casiraghi—Caroline of Monaco’s eldest son—joined the colorful Caribbean-themed night in a striking coral metallic dress with a hint of fuchsia.
The Colombian-American designer wore a piece by British label Erdem (€3,495), made from jacquard fabric with a linen blend and a carnation print. The dress had an asymmetric, draped silhouette and featured a bold, oversized bow on the left shoulder.
