Parts of Britain have descended into lawless chaos in recent days as videos showed fights breaking out in Kent and Berkshire during the heatwave that saw temperatures hit 33C.
The younger daughter of Prince Andrew and Sarah Ferguson, 35, had joined other members of the royal family, including the King and Queen, last Friday and Saturday at the Berkshire racecourse.
The author, 59, and doctor Neil Murray, were pictured dressed to the nines as they sat in the stands on the fourth day of the prestigious racing event in Berkshire.
Kate, 43, today issued a heartfelt note to mark Children's Hospice Week after deciding not to join her husband Prince William at the Berkshire races as expected on Wednesday.
Revellers created a sea of vibrant colours as they prepared for another day of watching nail-biting action on the Berkshire racecourse in the 28C heat.
Taking part in the traditional royal procession, Charles, 76, sat next to Queen Camilla, 77, in the first carriage as it travelled past packed stands on the Berkshire course.