The Prince of Wales is to attend the wedding of his close friend the Duke of Westminster and his Oxfordshire-raised fiancee today.

Billionaire aristocrat Hugh Grosvenor, 33, will marry Olivia Henson, 31, at Chester Cathedral.

William will act as an usher for the ceremony, which will start at midday.

His brother Prince Harry is not expected to be there after it was mutually agreed he would not attend.

The wedding comes amid a long-running rift between the princes.

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

Ten-year-old George is not expected to attend the wedding as it falls on a school day.

The Duke of Westminster topped The Sunday Times 40 Under 40 Rich List earlier this year, boasting a fortune of £10.1 billion.

His bride, who grew up in London as well as Oxfordshire, has worked in the sustainable food and drinks industry, most recently at London-based artisanal food company Belazu.

The couple are said to have chosen the wedding venue for its beauty and because of the personal connection to the duke, whose family home Eaton Hall is nearby.

The Duke of Westminster became an instant billionaire when he inherited his title and control of the historic Grosvenor Estate aged 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, Oxfordshire and major city centre developments such as Liverpool’s ONE shopping centre.