It's a busy Saturday for Charles, 77, and Camilla, 78, who joined other senior royal family members at the nuptials of Princess Anne's son before heading to Epsom Downs.

King Charles and Queen Camilla will leave his nephew Peter Phillips's wedding this Saturday before the guests even have time to raise a toast to the bride and groom.

The 48-year-old son of Princess Anne is set to wed Harriet, 45, on Saturday, June 6, at Gloucestershire's All Saints Church in an intimate but deeply significant affair.

The Princess Royal’s son will marry NHS nurse Harriet Sperling on Saturday

Phillips is the late Queen Elizabeth II's eldest grandson

Peter Phillips is the eldest grandchild of the late Queen Elizabeth II and Prince Philip.