Princess Diana's niece Lady Kitty Spencer, 30, marries billionaire fashion tycoon Michael Lewis, 62

In a love match to rival the fairytale setting of a grand Italian villa, Lady Kitty Spencer yesterday married fashion tycoon Michael Lewis in a lavish ceremony in front of their high-society friends and family.

As the searing summer heat began to ease at 6pm, Princess Diana's niece said 'I do' in front of a hushed congregation in the Villa Aldobrandini in Frascati, a stunning country mansion with views towards Rome.

The wedding, attended by a host of celebrities and aristocrats, was the climax of a party weekend which began in the Italian capital on Friday night.

The couple were joined by Lady Kitty's sisters, twins Eliza and Amelia; Viscountess Emma Weymouth and her husband Ceawlin Thynn, the Marquess of Bath; pop star Pixie Lott and her model boyfriend Oliver Cheshire; Idris Elba's wife Sabrina; and Made In Chelsea star Mark Vandelli.

Also present were 62-year-old Mr Lewis's three adult children from a previous marriage. Lady Kitty, 30 – the eldest child of Diana's brother Earl Spencer – is understood to have formed strong relationships with her South African-born husband's children

In keeping with the Italian theme, fashion house Dolce and Gabbana played a key role. Several guests, including Viscountess Weymouth, socialite and DJ Marjorie Gubelmann and fashion designer Jade Holland Cooper wore the designers' dresses.

Before the ceremony, Viscountess Weymouth and Ms Gubelmann posted on Instagram that their outfits were made by the Italian duo, while Ms Holland Cooper flaunted a small D & G handbag on the social media site.

It is understood that Lady Kitty's wedding gown was also made by the label. Earlier this year she was appointed a global ambassador for the brand and said: 'When I wear their pieces, I feel their passion and I feel like the best version of myself.'

She may have also opted to wear the Spencer tiara, a headpiece of diamonds in a floral design of tulips and star-shaped flowers, which her aunt wore for her wedding at St Paul's Cathedral on July 28, 1981. It is not known if Earl Spencer attended the wedding, but on Friday – when the rehearsal took place – he posted a picture on his Instagram account of the gardens at his Althorp estate.

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