Ladies' Day is considered one of the most glamorous affairs in the racing calendar, with show-stopping outfits and botanical-inspired headpieces taking centre stage. It's the perfect excuse for racegoers to wear their fanciest frocks and biggest hats. Take a look at all the highlights from day three...
Sophie wore her hair up in a chic chignon and added the floral headpiece that she also wore to the Duke and Duchess of Cambridge's 2011 royal wedding, which features feather details and roses.
Royal Ascot is one of the highlights of the royal family's summer calendar, and no doubt they are thrilled to be back at the course this year. While the Queen has so far been absent from the proceedings and there's been no traditional carriage processions, it's thought that she may attend at some point.