Pregnant Princess Beatrice oozed elegance for her latest outing to celebrate the launch of Australian designer Rebecca Vallance and American socialite Nicky Hilton’s new clothing collection. The eldest daughter of Prince Andrew and Sarah Ferguson, 36, wore a statement black dress for the launch party of Rebecca and Nicky’s new Holiday capsule collection in London today. Dressed to impress, the ensemble featured a trio of bows running down from the neckline to the waist, giving the classic black dress an elegant upgrade. Beatrice, who recently announced she is pregnant with her second child, was all smiles as she was photographed with Nicky, 41, and Rebecca, 44, at Mayfair hotspot Gaia on Tuesday. The expecting royal finished her look with a pair of pointed black slingback heels with a white floral detail, and a matching evening bag.  Nicky Hilton Rothschild and Princess Beatrice attend a cocktail party hosted by Nicky and Rebecca Vallance to celebrate the launch of their Holiday Collection at The Bar at GaiaBeatrice, 36, was glowing as she kept her makeup looking fresh and natural, with the young mother wearing a soft pink lip and the slightest hint of blush on her night out with Hilton and Vallance.The cocktail party was attended by prominent members of London high society including Lady Emily Compton, Downton Abbey star Daisy Lewis, British model Lady Mary Charteris, and Alice Naylor-Leyland. Hilton and Vallance announced the launch of their Holiday capsule collection, comprising 31 pieces, earlier this month. The new range includes embellished evening gowns, shimmering party dresses, and jumpsuits that are perfect for the festive season. This is the first time the Sydney-based designer has worked with a collaborator, with Vallance praising Nicky as an ‘international icon’. ‘Together, we’ve brought to life a range that reflects everything we both cherish timeless style, impeccable craftsmanship, and a celebration of femininity,’ she said. ‘These are values we hold close at Rebecca Vallance, and it’s been such a joy to share them with Nicky throughout this collaboration.’Hotel heiress and the younger sister of Paris Hilton, Nicky said she was excited to launch the collection with Vallance, adding: ‘No one loves dressing up for the holidays more than me. This collection celebrates the very best of a festive time of year.’ Nicky (left) and Vallance (right) announced the launch of the Holiday capsule collection, comprising 31 party-ready pieces, earlier this month Princess Beatrice’s latest public appearance comes shortly after she stepped out with her mother, the Duchess of York, for a Ladies Lunch held to raise money for a cancer charity in honour of Sarah’s 65th birthday. The royal mother and daughter were joined by celebrities including Elizabeth Hurley and Dame Joan Collins – who both also sported striking outfits – at the tenth annual Lady Garden Foundation Langan’s Ladies Lunch in London. Sarah, who is better known as Fergie, was diagnosed with breast cancer in June 2023. Just months later, in January 2024, the mother-of-two was told she had malignant melanoma, an aggressive form of skin cancer.While she has been advised against using the phrase ‘cancer free’, Sarah, writing in The Sun last week, said that her ‘treatment has been successful and tests show there has been no spread or recurrence.’For the event hosted by national women’s health charity the Lady Garden Foundation, whose motto is ‘We are loud and we are bold’, Sarah wore a £945 multicoloured blouse with a pussybow feature by Italian brand Pucci. She paired the distinctive blouse with a black, knee-length skirt and added a Gucci belt with a gold clasp. Sarah completed the look with sheer black tights and patent high heels.  The playful duchess styled her long, auburn hair with a wide headband in the same psychedelic Pucci print and sported a pair of white, 1960s-style sunglasses. Her daughter Princess Beatrice, 36, who announced that she was pregnant with her second child on October 1, opted for an equally striking dark pink mini dress.Cinched at the waist and with a flared skirt, the princess’s dress also featured button detailing down the left side.  She paired it with black opaque tights and black suede ankle boots.  Only a little less bold than her mother, Beatrice styled her long hair with a velvet headband in colour of the season burgundy. While mother and daughter posed for photographs together, Sarah was also pictured with Elizabeth Hurley and Dame Joan Collins, as well as other attendees.  The Ladies Lunch at Mayfair celebrity haunt Langan’s Brasserie was also attended by socialite and TV personality Tamara Beckwith and Charity Chair Jenny Halpern Prince, who both looked attractive in brightly-coloured silk dresses with geometric prints. The Lady Garden Foundation was launched in 2014 as the Gynaecological Cancer Fund to raise funds and awareness for various types of gynaecological cancers, hosted by charity chair and co-founder Jenny Halpern Prince.