The biggest Society wedding of the year: Duke of Westminster and Olivia Henson were joined by glam aristocratic and royal guests at their Chester Cathedral wedding (but no sign of Prince Harry!)

It was the biggest society wedding of the year, as crowds lined the streets of Chester to catch a glimpse of blushing bride Olivia Henson and her groom, the Duke of Westminster.

But it wasn’t only the newlyweds that caught the attention of those waiting outside the cathedral – because a host of glamorous guests filled the pews for the wedding of Britain’s richest man under 40.

Among them was British royalty, including the Prince of Wales, 41, who performed his duties as an usher. William was joined by his cousin Princess Eugenie, 34, who looked elegant in a sage green ensemble.

The glamour didn’t stop there, with guest including the Duke’s younger sister, Lady Viola Roberts, who enjoyed her own wedding two years ago, dazzling in pink alongside her husband Angus Roberts.

Lifelong friends of ‘Hughie’ also joined the celebrations, with Charlie van Straubenzee and his wife Daisy, whose daughter Clover is believed to have Prince Harry as her godfather, in attendance.

Here, FEMAIL reveals the guests at the high society wedding of the year…

Hugh Grosvenor, 7th Duke of Westminster, is the only son of Gerald Grosvenor, 6th Duke of Westminster.

A close friend of Prince William and Prince Harry, Hugh Grosvenor is the godfather of Prince George, William’s eldest child, and Prince Harry’s son Archie.

He was born as the Earl of Westminster, but assumed the title of Duke when his father passed away in 2016.

His baptism ceremony was attended by King Charles III, who was named as one of his godparents.

Through his mother Natalia, Mr Grosvenor descends from the Russian Imperial House of Romanov, with relations to Nicholas I of Russia.

Raised at Eaton Hall, Cheshire, Hugh Grosvenor was privately educated at Ellesmere College before obtaining a BSc in Countryside Management from Newcastle University.

After his graduation, Grosvenor worked in estate management at the food and agriculture company Wheatsheaf Group, an investment business based in the Eaton estate and owned by the Grosvenor Group.

Afterwards, he held an account manager position at sustainability company bio-bean, which turns coffee-related waste into bioproducts such as biofuels and logs.

The 7th Duke, 33, universally known as ‘Hughie’ to aristocratic friends, is estimated to be worth £10.42billion, making him the richest man under 40 in Britain.

Hugh Grosvenor prosed to Olivia Henson, then his girlfriend of two years, in April 2023 at his family seat, Eaton Hall in Cheshire.

The aristocrat released a statement about the happy news, saying: ‘The Duke of Westminster and Miss Olivia Henson are delighted to announce they are engaged to be married.

‘The couple, who have been together for two years, recently became engaged at the Duke’s family home at Eaton Hall in Cheshire. Members of both their families are absolutely delighted with the news.

‘Hugh Grosvenor, The Duke of Westminster, is Grosvenor’s Chair as well as Chair of the Westminster Foundation. Miss Henson works for Belazu, a B-Corp certified food company based in London.’

Olivia, 31, who also attended Marlborough College, completed a Hispanic Studies and Italian degree at Trinity College in Dublin.

When she was younger, the future Duchess of Westminster was also at the equally revered Dragon School in Oxford, with fellow classmate Emma Watson.

She now works at sustainable food company Belazu, but according to insiders speaking to Tatler, is said to have left the role to focus on her new ‘era’.

Olivia descends from the Hoare banking family as well as the Marquesses of Bristol and the Dukes of Rutland, according to the Telegraph.

The outlet also says her uncle is the Grand Master of Scottish freemasons and her is father is stockbroker Rupert Henson.

Prince William performed his duties as an usher at the Duke of Westminster’s marriage to Olivia Henson today.

The Prince of Wales, 41, was pictured waving to the cameras as he arrived for the service at Chester Cathedral.

But his brother Harry, also one Hugh Grosvenor’s closest friends, was not in attendance, choosing to remain in California instead.

An insider this week said it would have been ‘difficult’ for Harry to attend, and the decision for him not to come was a ‘understanding between the two friends’.

The Duke of Westminster is the godfather to William’s son Prince George and Harry’s son Archie.

Sources close to Prince Harry briefed People magazine in America and said he had spoken to the Duke of Westminster, and discussed tensions within the Royal Family.

People magazine reported it can confirm Harry was invited to the wedding and was not excluded from the event.

Their report reads: ‘However, there was an acknowledgment on both sides that it would be difficult for Harry to attend.’ While a source added: ‘It was an understanding between the two friends.’

An insider close to the newly married couple added: ‘The decision certainly avoided the inevitable clamour had estranged brothers Prince William, 41, and Prince Harry both attended the nuptials, eliminating the possibility of the big day being overshadowed for the couple.’

The publication added that: ‘The Duke of Sussex sends ‘his love and support and admiration for the couple’ for their wedding day.’