Prince William is set to be an usher at his friend the Duke of Westminster’s wedding but King Charles won’t attend amid rumours of tension over a past Queen Camilla ‘snub’.

Prince Harry is also expected to miss the event over worries his attendance may cause family awkwardness which could overshadow his friend Hugh Grosvenor, and his bride-to-be, Olivia Henson’s big day on June 7.

The King and Queen will miss the ‘society wedding of the year’, over claims they have not forgotten about what happened at the 2004 wedding of Hugh’s sister.

They turned down their invitations at the time to Lady Tamara Grosvenor and Edward van Cutsem’s wedding, which was held at the same venue as the duke’s upcoming wedding: Chester Cathedral.

Camilla Parker Bowles, as she was then, had been told that she would not be allowed to sit with Prince Charles and would instead be seated several rows back and be made to arrive separately.

This was because of royal protocol since Queen Elizabeth and Prince Philip attended the ceremony, along with Princes William and Harry.

+22
View gallery

Prince William is set to be an usher at the society wedding of the year when his close friend the Duke of Westminster Hugh Grosvenor gets married to Olivia Henson next month. Pictured: The couple’s official photo released to mark their engagement

+22
View gallery

Prince William will be among the groom’s party, but the Princess of Wales, who is receiving cancer treatment, is not expected to attend

+22
View gallery

Prince Harry is not on the guest list for his friend’s marriage to ‘avoid any royal tensions overshadowing the big day’. Neither he nor his wife Meghan Markle will attend, despite Grosvenor being so close to Harry that he is a godfather to the couple’s five-year-old son Prince Archie

+22
View gallery

The wedding of Lady Tamara Grosvenor, and Edward van Cutsem. The King and Queen chose to turn down their invitations to the 2004 wedding