We last saw Meghan when she and Harry introduced their son to the world at Windsor Castle just over a month ago. The proud parents have been savouring every moment with Archie at Frogmore Cottage, and welcoming family and friends to meet him.
Trooping the Colour is a very important day on the royal calendar. The event not only celebrates Her Majesty's birthday, but is very much considered a day to see the whole family together. Indeed, next year, it's possible Archie will make his debut. Although Meghan is on maternity leave, she is expected to attend several "big moments" over the summer according to The Times.
The Duke and Duchess were all smiles as they travelled in a horse-drawn carriage for the procession with the Duchess of Cornwall and the Duchess of Cambridge.
Meghan and Kate chatted as they departed the palace.
There's lovely footage of the Duchesses in the video below.
The grand military parade is one of the finest displays of pomp and pageantry in the United Kingdom.
The Yorks travelled in the second carriage.
And the Wessexes in the third carriage.
Her Majesty travels down the mall.
Although the Queen's birthday is 21 April, it has long been tradition to celebrate the sovereign's birthday publicly on a day in June, when good weather is more likely. Her Majesty has attended Trooping the Colour every year since 1947 - except in 1955 when a national rail strike cancelled the event.
The background of the prestigious annual event? Trooping the Colour actually originated in traditional preparations for battle. Colours, or flags, were trooped down the rank so they could be seen by the soldiers. In 1748, it was announced the parade would also mark the sovereign's official birthday.
More on the history of the day:
'The Sovereign's birthday is officially celebrated by the ceremony of Trooping the Colour (Queen's Birthday Parade). This impressive display of pageantry takes place on a Saturday in June by her personal troops, the Household Division, on Horse Guards Parade, with Her Majesty the Queen herself attending and taking the salute. The parade route extends from Buckingham Palace along The Mall to Horse Guards Parade, Whitehall and back again.
During the ceremony, The Queen is greeted by a Royal salute and carries out an inspection of the troops. After the massed bands have performed a musical 'troop', the escorted Regimental Colour is carried down the ranks.The Foot Guards and the Household Cavalry then march past Her Majesty, and The King's Troop, Royal Horse Artillery, rank past.The Queen rides in a carriage back to Buckingham Palace at the head of her Guards, before taking the salute at the Palace from a dais.'
An enormous amount of planning and preparation goes into ensuring the annual event runs as smoothly as possibly.
Over 1,400 officers and military personnel are on parade, together with two hundred horses. Over four hundred musicians from ten bands and corps of drums march and play as one. Some 113 words of command are given by the Officer in Command of the Parade. The parade route extends from Buckingham Palace along the Mall to Horse Guards Parade, Whitehall and back again.
The Colour of the 1st Batallion Grenadier Guards was trooped.
On horseback, Prince Charles, Colonel of the Welsh Guards; Prince William, Colonel of the Irish Guards; the Princess Royal, Colonel of the Blues and Royals; and Prince Andrew. Harry doesn't ride on horseback at the event as he's not a Royal Colonel yet, neither did Andrew until last year when he succeeded his father as Colonel of the Grenadier Guards.
At 1 pm, the Royal family gathered on the balcony of Buckingham Palace.
The event culminated with a stunning show by the Royal Air Force. More than twenty-five military aircraft soar over Buckingham Palace in formations thirty seconds apart. Aerobatic team, the Red Arrows, decorated the skyline with red, white and blue smoke.
Below, Meghan chatting to Princess Eugenie's husband, Jack Brooksbank.
A closer look at Harry and Meghan enjoying the flypast.
Footage from the balcony.
View the event in its entirety below.
The Duchess made her first appearance at Trooping last year, it marked her first official appearance after the honeymoon. Meghan wore a bespoke Carolina Herrera ensemble with large asymmetric buttons and an off-the-shoulder neckline.
Today, the Duchess looked radiant in a bespoke navy cape and navy and cream dress by Clare Waight Keller for Givenchy. The designer knows Meghan's style so well, and recently spoke of their incredibly close bond. She was a natural choice to create Meghan's first look for the event and it's very elegant and understated.
Meghan wore a matching hat by London-based milliner Noel Stewart. It's a similar design to the hat Stewart created for the Duchess' attendance at Princess Eugenie's wedding.
Meghan's clutch is Givenchy (with thanks to RepliKate Royalty).
A closer look at Meghan's earrings.
And navy leather gloves.
The Duchess debuted an eternity ring today, quite possibly an anniversary gift from Prince Harry.
It was a splendid display as always. Lovely to see Meghan there!