summer elegance

Lady Kitty Spencer, Princess Alessandra and Princess Cleo turn the French Riviera into a royal fashion runway


The royal guests were also seen enjoying the spectacular surroundings together


Lady Kitty Spencer, Princess Alessandra and Princess Cleo turn the French Riviera into a royal fashion runway© Rowben Lantion
Daniel NeiraSenior Writer
JULY 13, 2026 3:23 PM EDT

The French Riviera welcomed a fashionable gathering of royalty, aristocrats and style insiders as Aquazzura and Net-a-Porter celebrated their exclusive summer capsule collection with a two-day event at the legendary Palais Bulles and the iconic seaside restaurant Tétou. 

Among the standout guests were Lady Kitty Spencer, Princess Alessandra of Hannover, and Princess Cleo Oettingen-Spielberg, whose elegant looks perfectly captured the effortless glamour of the Côte d'Azur. 

Lady Kitty Spencer, Princess Alessandra of Hannover, Princess Cleo Oettingen-Spielberg and fellow guests gathered for an elegant evening overlooking the Mediterranean on the French Riviera© Rowben Lantion
Lady Kitty Spencer, Princess Alessandra of Hannover, Princess Cleo Oettingen-Spielberg and fellow guests gathered for an elegant evening overlooking the Mediterranean on the French Riviera

Hosted by Aquazzura founder and creative director Edgardo Osorio alongside Net-a-Porter CEO Heather Kaminetsky, the festivities began with sunset cocktails before guests gathered for dinner at Palais Bulles, the futuristic "Bubble Palace" designed by visionary Hungarian architect Antti Lovag and later owned by legendary designer Pierre Cardin. 

Overlooking the Mediterranean, the architectural masterpiece provided an unforgettable backdrop for a night celebrating fashion, friendship and summer elegance.

Princess Cleo Oettingen-Spielberg turned heads in a striking turquoise ensemble during the star-studded gathering overlooking the Mediterranean.© Rowben Lantion
Princess Cleo Oettingen-Spielberg turned heads in a striking turquoise ensemble during the star-studded gathering overlooking the Mediterranean.

Lady Kitty Spencer embraced timeless Riviera dressing in a chic white sleeveless mini dress featuring a fitted bodice and softly flared skirt. She completed the monochromatic look with bright yellow crystal-embellished Aquazzura heels and a matching yellow-and-white gingham clutch, adding a playful pop of color. 

Her signature blonde hair was worn sleek and straight with a center part, while understated makeup highlighted her glowing complexion and soft nude lip. During the weekend, she was photographed alongside Edgardo Osorio and also mingled with fellow royal guests throughout the celebration.

Lady Kitty Spencer embraced timeless Riviera elegance in a chic white mini dress as she posed with Aquazzura founder Edgardo Osorio during the glamorous French Riviera celebration.© Rowben Lantion
Lady Kitty Spencer embraced timeless Riviera elegance in a chic white mini dress as she posed with Aquazzura founder Edgardo Osorio during the glamorous French Riviera celebration.

Princess Alessandra of Hannover brought a relaxed Mediterranean feel in a flowing striped midi dress blending sky blue, white and warm orange tones. 

The fitted bodice and full skirt created an effortlessly feminine silhouette, complemented by metallic gold Aquazzura sandals and a woven white-and-straw bucket bag that echoed the season's vacation-inspired accessories. 

Princess Alessandra of Hannover captured effortless summer style in a colorful striped midi dress inspired by the relaxed glamour of the Côte d'Azur.© Rowben Lantion
Princess Alessandra of Hannover captured effortless summer style in a colorful striped midi dress inspired by the relaxed glamour of the Côte d'Azur.

Wearing her glossy brunette hair loose in soft waves, she kept her beauty look fresh and natural with glowing skin and delicate jewelry, embracing understated sophistication.

Princess Cleo Oettingen-Spielberg offered a more contemporary take on Riviera glamour in a turquoise two-piece ensemble featuring a fitted short-sleeve crop top and coordinating high-waisted maxi skirt. 

Inside the glamorous French Riviera gathering where Lady Kitty Spencer and European royals stole the show© Rowben Lantion
Inside the glamorous French Riviera gathering where Lady Kitty Spencer and European royals stole the show

She paired the striking monochromatic look with bronze platform sandals, a metallic clutch and turquoise drop earrings that echoed the dress's vibrant hue. Her hair was styled in polished retro-inspired waves pulled back from the face, while softly bronzed makeup emphasized her eyes and radiant complexion.

With its signature circular forms and sweeping Mediterranean views, Palais Bulles served as one of the most unforgettable settings of the Riviera weekend.© Rowben Lantion
With its signature circular forms and sweeping Mediterranean views, Palais Bulles served as one of the most unforgettable settings of the Riviera weekend.

The royal guests were also seen enjoying the spectacular surroundings together, posing inside the iconic circular windows of Palais Bulles and chatting with fellow attendees throughout the evening, reflecting the relaxed yet glamorous atmosphere that defined the celebration.

Designed to capture the carefree elegance of the French Riviera, the capsule combines refined occasion dressing with effortless vacation style.