Beatrice, 29, opted for a blush pink dress, which she teamed with an red hat.
The members of the royal family - yes, including now Meghan Markle, the Duchess of Sussex - stepped out on Saturday in London for the annual Trooping the Colour parade, the official celebration of Queen Elizabeth II's birthday. Other notable royals who attended the family gathering included James, Viscount Severn, Lady Louise Windsor 4.
The trip comes just over four years after the Duke and Duchess of Cambridge visited Australia and New Zealand, when Prince William and Kate Middleton spent 18 days across the region covering a grand total of 23,701 miles.
Prince Philip, the Queen's husband, did not attend the event, having retired from public life past year.
Her actual birthday is April 21 but the country always celebrates in June.
Instagram princesseugenieShe shared the snap ahead of Father's Day this weekend reportedly very close to her father
At 1pm, the royals gathered on the balcony for the RAF flypast featuring 23 modern and historic planes, Meghan taking centre stage.
While Harry and Meghan's premier tour has caused a buzz of excitement in the worldwide media, fears have been raised about the couple's desire to start a family as soon as possible.
Despite her apparent nerves, Meghan was in high spirits when she arrived on House Guards Parade with Harry in a carriage, along with the Queen's cousin the Duke of Kent.
Kensington Palace has announced the Duke and Duchess of Sussex, who married last month, will travel to Sydney for the 2018 Invictus Games - a Paralympics style event for defence veterans - of which Prince Harry is patron.
A statement by Kensington Palace confirmed the couple will not only visit Australia together, but will also be heading over to Fiji, the Kingdom of Tonga, and New Zealand.