The Royal Family: Prince William to be usher at Duke of Westminster's wedding – but Harry 'won't attend'

The Prince of Wales is set to serve as an usher at the wedding of his close friend, Hugh Grosvenor, the Duke of Westminster, next month, according to reports. The 33-year-old aristocrat and businessman is due to marry Olivia Henson, 31, at Chester Cathedral on June 7.

Prince William will be part of the groom's party at the 400-person ceremony. His younger brother, Prince Harry, will not be in attendance, as reported by the Sunday Times.

The Princess of Wales, Kate, is currently undergoing cancer treatment. She is also not expected to attend.

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The Duke of Westminster, a godson of the King and godfather to Prince George, William's son. He is also the godfather to Harry's five year old son, Prince Archie.

The couple announced their engagement at Eaton Hall in Cheshire in April last year. They had been together for two years when they got engaged.

Reports surfaced in December suggesting that Harry and his wife Meghan were not invited to the wedding. The Duke of Westminster topped The Sunday Times 40 Under 40 Rich List this week, with a fortune of £10.1 billion.

He became an instant billionaire when he inherited his title and control of the historic Grosvenor Estate at the age of 25 following the death of his father from a heart attack in 2016. His property company, Grosvenor Group, owns about 300 acres of land in Mayfair and Belgravia, as well as major city centre developments such as Liverpool's ONE shopping centre, and the duke is part of the Royal inner circle.