Prince George, eight, Prince Louis, four and Princess Charlotte, seven, waved to the crowds from their carriage—it marked the very first time that the three children have ridden into the Palace for the event.
To mark such a momentous occasion, it was only fitting that a sweet tribute be included—Prince Louis was wearing the very same sailor outfit worn by his father, Prince William, to Trooping the Colour in 1985.
Meanwhile Kate Middleton looked chic as ever in an all-white ensemble and matching hat.
In her own tribute, she wore beautiful blue sapphire earrings which once belonged to her late mother-in-law, Princess Diana.
Sophie, Countess of Wessex went for a pink gingham look for the occasion.
Opposite Sophie were her two children, Lady Louise Windsor and James, Viscount Severn.
Ever the equestrian, Princess Anne rode horseback into the Palace.
We also couldn't help but notice the likeness between Anne and her mother, Queen Elizabeth, whose first ever Trooping The Colour as Sovereign in 1952 was eerily similar.
As did her nephew Prince William, who rode in alongside his dad, Prince Charles.
Then, the moment we had all been waiting for. Her Majesty the Queen stepped out onto the Buckingham Palace balcony alongside her cousin Prince Edward, Duke of Kent.
For the special event, the Queen opted for a light blue ensemble with white floral detailing and a striking brooch.