Lady Kitty Spencer was also in attendance at the start-studded Dolce and Gabbana fashion show.
The 30-year-old, who is the niece of the late Princess Diana, wowed in an elegant cream gown with beaded detailing.
She stepped off the boat with former Strictly star Emma Weymouth, the Marchioness of Bath.
The 35-year-old model wowed in a strapless pink feathery dress.
www.express.co.uk
