Princess Talita Natasha von Fürstenberg has celebrated her forthcoming wedding with a raucous hen party on a yacht in Sardinia, stripping down to tiny hot pants and slogan crop tops alongside her bikini-clad friends including King Charles's goddaughter, Princess Maria-Olympia of Greece.Talita, 27, the granddaughter of billionaire fashion designer Diane von Furstenberg and daughter of Prince Alexander von Fürstenberg, shared snaps from the girls' Mediterranean trip on Instagram stories this week.She and her friends wore matching white crop tops reading 'La Dolce Talita' - a play on 'la dolce vita' - printed with Aperol spritz glasses. Talita paired hers with hot pants hand-painted across the back with the same slogan.The glamorous socialite - who is co-chairwoman of the Diane von Furstenberg brand - is engaged to Italian banking scion Rocco Brignone de Brabant, 25, founder of Laúd Tequila.The couple, who have been together since 2018, got engaged last summer. Diane, 79, announced the news herself on Instagram, writing: 'Talita and Rocco are ENGAGED!!! He proposed. She accepted!'The Belgian-born designer, who built an empire on her 'magic' wrap dress, is a Forbes-listed billionaire whose fortune has been estimated at around $1.2 billion.Her husband - Talita's step-grandfather - is media mogul Barry Diller, the IAC and Expedia chairman valued by Forbes at $5.3 billion, making him one of the richest people in the world.One photo from Talita's hen do shows the bride-to-be raising an Aperol spritz to the camera in an orange bandana aboard the wood-panelled yacht. On a separate occasion, she posed in a white crochet bikini and straw hat by the sea.Princess Talita Natasha von Fürstenberg has celebrated her forthcoming wedding with a raucous hen party on a yacht in Sardinia Talita, 27, the granddaughter of billionaire fashion designer Diane von Furstenberg and daughter of Prince Alexander von Fürstenberg, shared snaps from the girls' Mediterranean trip on Instagram stories this week She and her friends wore matching white crop tops reading 'La Dolce Talita' - a play on 'la dolce vita' - printed with Aperol spritz glasses. Talita paired hers with hot pants hand-painted across the back with the same sloganPrincess Olympia, 29, is Talita's first cousin and a goddaughter of King Charles III. The model, who grew up in London, shared a photo of the pair sitting on the edge of the yacht in their matching hen do outfits.The cousins have holidayed together for years, and Olympia was among the first to congratulate Talita on her engagement, commenting on social media at the time: 'LOVE YOU BOTH SO MUCH !!!!!'The hen do also included Elizabeth Tisch, 27 - daughter of New York Giants chairman and film producer Steve Tisch and businesswoman Jamie Tisch - and Sofia Yeganeh, the artist daughter of Real Housewives of London star Amanda Caroline Cronin.Talita reposted a group shot of the full party lined up in bikinis on the yacht's swim platform, showing Sardinia's Isola Tavolara behind them. 'Best friends forever,' she captioned it.The celebrations also featured an inflatable groom doll, which the girls could lounge in while soaking up the sun.A date for the wedding has not yet been confirmed but it's believed to be taking place this year.Talita's royal lineage runs through both sides of her family. Her grandfather was German aristocrat Prince Egon von Fürstenberg, married to Diane for 14 years before his death in 2004.Her father is Prince Alexander von Fürstenberg, while her mother, interior designer Alexandra von Fürstenberg, was one of the '90s New York 'It girl' Miller sisters, alongside Pia Getty and Crown Princess Marie-Chantal of Greece - Olympia's mother, and Talita's aunt.The glamorous socialite - who is co-chairwoman of the Diane von Furstenberg brand - is engaged to Italian banking scion Rocco Brignone de Brabant, 25, founder of Laúd Tequila Pictured: Princess Talita with King Charles's goddaughter, Princess Maria-Olympia of Greece. Princess Olympia, 29, is Talita's first cousin and a goddaughter of King Charles III The couple, who have been together since 2018, got engaged last summer. Diane, 79, announced the news herself on Instagram, writing: 'Talita and Rocco are ENGAGED!!! He proposed. She accepted!'The sisters, daughters of duty-free tycoon Robert Warren Miller, married into aristocratic and billionaire circles.Despite the title, Talita has long been reluctant to use it. 'I definitely would not consider myself a royal,' she told Vogue in 2019. 'It's by blood, but it's so far off, I don't like to use my title.'She has said the picture might have been different had she grown up in Europe. 'In LA, where I grew up, if I said I was a princess people would freak out,' she told HELLO! Fashion. 'I didn't think I could claim that title for myself.'Rocco comes from an Italian banking family that owns the private estate resort Costa Careyes on Mexico's Pacific coast. The pair have known each other since childhood, their friendship turning to romance in 2018.Diane has previously called Talita her 'muse' and is grooming her to one day take over the fashion empire.'I'm putting all of my archive, all of my 50 years of experience, into this huge vault with the codes and the tricks,' Diane told The Wall Street Journal. 'Then it's in the hands of young people.'