Duchess Sophie and Prince Edward celebrate anniversary at Royal Ascot - best photos

Princess Beatrice and her husband, Edoardo Mapelli Mozzi, shared a carriage with Princess Zahra Aga Khan and William Haggas. 

The Duke and Duchess of Edinburgh rode in a carriage with the Princess Royal and Vice Admiral Sir Tim Laurence. 

Anne looked elegant in a cobalt blue ensemble with a veiled hat and pearls, while Sophie opted for a white floral number.

It seems everyone got the butter yellow dress code, as the King sported a waistcoat in the colour of the season, while the Queen looked lovely in a dove-grey dress.

Zara Tindall wowed in a monochrome outfit on day three. 

Beatrice wore a long-sleeve yellow dress with floral detailing by Monique Lhuillier. 

Peter Phillips greeted his uncle Charles with a kiss on the cheek. 

Harriet looked chic in a lemon belted midi dress from Beulah London with puff sleeves, and a matching bow-detail hat by Nicola de Selincourt.

She teamed her ensemble with Emmy London heels, an Anya Hindmarch and jewellery from Legano.

Zara wowed with another race day look in a monochrome collared dress by Laura Green with a boater-style hat by Juliette Botterill. 

Mike donned a dark morning suit with a charcoal waistcoat and tie, and a top hat.

The Duchess looked beautiful in a white floral tea dress by Suzannah London with a veiled hat by Jane Taylor London and a Radley bag.

Beatrice and Harriet appeared to be admiring one another's outfits as they arrived in the parade ring.

Mike and Zara, who will celebrate 14 years of marriage next month, were spotted holding hands. Aww!

Beatrice was animated in the royal box - we wonder which horse she was cheering on?

The King's cousin made an appearance with his girlfriend, Isabella de la Brigadiere.