Exactly one year ago, royal fever gripped the nation as it celebrated the late Queen's Platinum Jubilee.
A bumper four-day bank holiday weekend marked her incredible 70-year reign and the party was kicked off with the annual Trooping the Colour.
The event sees the royals travel in a carriage procession from Buckingham Palace to Horse Guards Parade - and last year's event saw Prince George, Princess Charlotte and Prince Louis make their debuts in the carriages.
The young royals beamed as they waved to well-wishers and looked around at the horses taking part in the monarch's official birthday celebration as they shared a carriage with mum Kate and Queen Camilla, who was then Duchess of Cornwall.
But it appeared that Charlotte, dressed in a cornflower blue dress, wasn't overly impressed by her little brother Louis' excited wave.
And she was seen telling him to stop and slapping down his hand. But Louis didn't look too put off and continued to smile.
Overhead photos also showed her holding her little brother's hand during the trip, supporting him through the massive occasion.
The children were dressed in a light blue, navy and white colour scheme, with Louis donning a sailor-style top echoing an outfit worn by his father at the 1985 Trooping event.
George was dressed in a navy suit, white shirt and blue tie while Charlotte's hair was down with two fine plaits fastened with a blue ribbon.
Trooping the Colour has marked the monarch’s official birthday for over 260 years, and this year will mark Charles’ first appearance at the event as King.
This year's event is due to take place later this month on June 17 - with George, Charlotte and Louis likely to take part again.
The King and Prince William will ride on horseback during the display, while other members of the royal family, including Kate and the Queen, will watch from carriages and the Buckingham Palace balcony.
Over 1,400 parading soldiers, 200 horses and 400 musicians take part in the display of military precision, horsemanship and fanfare.
The parade travels from Buckingham Palace down The Mall to Horse Guards Parade and closes with a Royal Air Force fly-past.
Last year, Buckingham Palace said three royals had been appointed Colonels within the Foot Guards, including Camilla as Colonel of the Grenadier Guards.
This role was previously held by Prince Andrew and has been vacant since he was stripped of his royal titles.
Meanwhile, Kate became Colonel of the Irish Guards, a role previously held by William, who too the Colonel of the Welsh Guards title from his father.
