Lady Kitty Spencer has shared a glimpse of her summer getaway to The Hamptons with her rarely-seen billionaire husband Michael Lewis.The 35-year-old niece of Princess Diana took to Instagram to share a carousel of enviable pictures from the 'sweetest summertime' in the popular holiday spot often frequented by A-listers.Lady Kitty oozed elegance as she posed in a glamorous floral maxi dress which she paired with pink heels during an intimate dinner hosted by Carolina Herrera, Wes Gordon and Sarah Wetenhall, founder of the boutique Hamptons hotel Hedges Inn.However, eagle-eyed fans took particular note of the sweet video Lady Kitty shared of her tycoon husband, whom she tied the knot with in 2021.Lady Kitty - who is 32 years younger than her husband - married South African businessman Michael in the enchanting gardens of Villa Aldobrandini in Frascati, Italy.Now, in a rare display of their family life, which is often kept private from the public eye, the socialite shared a video of Michael and their three-year-old daughter Athena playing in the sea and enjoying the waves.Elsewhere, Lady Kitty posed in a polka dot bikini, while also showcasing their joyous family time in the sun - including trips to the supermarket, footprints in the sand and Athena feeding the farm animals.Combined with sweet family snapshots, Lady Kitty also shared a photograph from an event for nail varnish brand Essie with dermatologist Dr Macrene Alexiades, alongside footage of America DJ Diplo during a performance in the Hamptons.Lady Kitty Spencer has shared a rare glimpse of her luxurious Hamptons summer getaway with her billionaire husband Michael Lewis In a rare display of their family life, which is often kept private from the public eye, the socialite shared a video of Michael and their three-year-old daughter Athena playing in the sea and enjoying the waves Lady Kitty showcased their joyous family time in the sun - including trips to the supermarket, footprints in the sand and Athena feeding the farm animalsLady Kitty has kept her relationship with Michael largely out of the public eye, rarely sharing photos of him on social media and choosing to step out solo for most red-carpet events.The pair, who first met through mutual friends in 2018, secretly welcomed their daughter Athena in 2023 and announced her arrival on Mother's Day the following year. Sharing a stunning picture on the beach holding her baby, Lady Kitty wrote: 'It's the joy of my life to be your mummy, little one. I love you unconditionally. Happy Mother’s Day to those who celebrate today'.Lady Kitty is a first cousin to Princes William and Harry meaning that young Athena is a second cousin to Princes George, Louis, Archie and Princesses Charlotte and Lilibet. She has made a name for herself in the fashion world, as a spokesmodel for Dolce & Gabbana, who supplied five dresses for her wedding, and walking in several Fashion Weeks across the globe. The niece of the late Princess of Wales first caught the eye of Michael in 2018 and the pair tied the knot in a glamorous ceremony at a stunning Italian country mansion three years later. Michael is the chairman of the Foschini Group, which owns British high street chains Whistles and Phase Eight, is believed to be worth £80million. The business tycoon owns a £19million property in London and another home in his native South Africa, where his wife grew up after her father, Charles, the 9th Earl Spencer and his first wife, Victoria Lockwood, divorced. Lady Kitty also gave an insight into the events she has attened during her summer in the Hamptons, and shared fotoage of her while getting ready The pair, who first met through mutual friends in 2018, secretly welcomed their daughter Athena in 2023 and announced her arrival on Mother's Day the following yearMichael comes from wealth, thanks to his grandfather's furniture retail business, which was founded in the 1930s.Stanley Lewis, Michael's father, bought a stake in the clothing retailer Foschini Group in the 1980s, with Michael later taking his place on the Foschini Group board.The tycoon has been the board's chairman since 2015 and presides over a vast retail empire.Michael, who is five years older than Lady Kitty's father, wed his first wife in 1985, and the pair welcomed three children before eventually calling it quits.He proposed to Lady Kitty shortly before Christmas 2019 and their engagement became public in January 2020. During their wedding, Lady Kitty's father was notably absent, as were her cousins. Instead, she was walked down the aisle by her brothers Louis Spencer, Viscount Althorp, and Samuel Aitken, whose father is businessman Jonathan Aitken.Earl Spencer was also absent from her sister, Lady Amelia's mountaintop wedding to lifestyle coach Greg Mallet in Stellenbosch, South Africa, in 2023.At the time, an insider told the Daily Mail that the Earl's health was unlikely to have accounted for his absence. Rather it was likely to have been the result of a changing family dynamic. The niece of the late Princess of Wales first caught the eye of Michael in 2018 and the pair tied the knot in a glamorous ceremony at a stunning Italian country mansion three years later'The four children are all close to their mother Victoria and get on well with their step-siblings, and their Spencer aunts and have forged their own relationships with one another without needing Charles to bind them together,' said the insider.A source had previously told the Daily Mail how Earl Spencer and his eldest daughter have drifted apart over time.'Kitty and Charles were very close when she was growing up, but their relationship has cooled and been more distant since his marriage to his third wife Karen in 2011,' they said. 'Charles recently suffered an injury and perhaps that will be the reason for him not travelling, but it is just easier for everyone that he is not there.'As a global ambassador for Dolce & Gabbana, Kitty's wedding wardrobe - featuring five haute couture gowns - was designed by the Italian fashion house.At the time, Domenico Dolce said: 'She told us she had thought of us immediately, and we were very happy with that!'Kitty made her grand entrance in a Victorian-inspired ivory lace gown, incorporating a high neck, bustier-style bodice and puffed shoulders.During the three-day celebrations, Kitty showcased a total of five exclusive dresses, each exuding glamour and sophistication.Having delayed their wedding for two years due to the pandemic, the celebrations were attended by close friends including the pop star Pixie Lott and the Marchioness of Bath.The evening before the main event, she captivated guests in a blue tulle dress, featuring a corseted bodice, full skirt and floor-length cape embroidered with flowers.She swept her golden locks into a chignon and accessorised with an exquisite suite of jewels.Following the nuptials, the bride changed into a stunning silk ballgown, hand-painted with intricate blooms, and later danced the night away in a sparkling beaded cocktail dress.On the third and final day of festivities, Kitty chose refined elegance, wearing an emerald silk dress embellished with sequins, ribbons and floral embroideries.