Prince Charles and Camilla led Britain's monarchy at Royal Ascot, the country's most valuable horse racing event.
Queen Elizabeth II was notably absent on day one dmue to ongoing mobility issues.
Prince William and Kate were also not there on the first day. The Duke and Duchess of Cambridge joined the local community at a Grenfell Tower memorial service in London on the fifth anniversary of the tragedy.
Scroll through the gallery above to see photos of the royal family arriving at Royal Ascot
What did the royal family wear?
The Duchess of Cornwall wore an aqua-coloured coat dress with a pearl necklace, white diamond brooch and pearl-drop earrings.
Hats and fascinators are a tradition at Royal Ascot, and this year Camilla chose a wide-brimmed light blue hat by milliner Philip Treacy.
Prince Charles and Camilla were in the lead carriage, which travelled the length of the racecourse, followed by Anne, the Princess Royal, and the Duke and Duchess of Gloucester.
Princess Anne's two children, Peter Phillips and Zara Tindall (with her husband Mike), were also in attendance, as were Sophie, the Countess of Wessex, Princess Beatrice and her husband Edoardo Mapelli Mozzi.
Scroll through the gallery below to see photos of day one at Royal Ascot
Princess Anne donned a beige and tan outfit, while her daughter chose a waist-cinching, pastel linen dress with puffed sleeves from Anna Mason, alongside a tilted white headpiece with pastel pom-poms.
Mike Tindall chose a grey suit with a pink shirt and lilac tie to match his wife's pastel outfit.
Princess Beatrice wore a white and pink Zimmermann dress with florals, paired with a straw belt and clutch, a pair of pink pumps and a headband with a pink bow by Juliette Botterill Millinery.
By her side, Mapelli Mozzi donned a three-piece suit and black top hat.
The Countess of Wessex chose a pale pink ensemble with a wide-brimmed maroon hat, pearl-drop earrings and a pearl-encrusted brooch.
Best fashion from the platinum jubilee weekend, from Queen Elizabeth II to Kate — in pictures
