The royal family united at Buckingham Palace on Wednesday to pay their final respects to the late monarch who passed away on 8 September.
WATCH: King Charles III leads the procession
A sombre-looking King Charles III and the Queen Consort were pictured arriving at the palace earlier this afternoon.
© Photo: Getty ImagesKing Charles III joined the procession to Westminster Hall
In a display of unity, Prince William and Prince Harry joined their father in procession behind the Queen's coffin as it made its way to Westminster Hall.
© Photo: Getty ImagesPrince William and Prince Harry put on a united front
The brothers were side by side – unlike at the Duke of Edinburgh's funeral when their cousin Peter Phillips walked between them – in the second row of the procession, with Harry in the middle, William on his right and Mr Phillips on his left.
Harry, who spent a decade in the forces including two tours of duty to Afghanistan, was not in military uniform unlike William, because he is no longer a working royal.
© Photo: Getty ImagesThe King was supported by his siblings
In the front row were, from left to right, the Earl of Wessex, the Duke of York, the Princess Royal and the King – all in uniform except for the Queen's second son Andrew.
© Photo: Getty ImagesThe Princess of Wales arrived looking sombre
In the third row were Anne's husband Vice Admiral Sir Tim Laurence, the Queen's cousin the Duke of Gloucester, and the Earl of Snowdon – the son of the Queen's sister Princess Margaret.
© Photo: Getty ImagesThe Duchess of Sussex was pictured arriving by car
Members of the royal family saluted as they passed The Cenotaph.
© Photo: Getty ImagesCharles donned his military uniform
The procession kicked off at 2.22pm and arrived in Westminster at 3pm, where the late monarch will lie in state for the next five nights ahead of her poignant funeral on Monday 19.
© Photo: Getty ImagesThe late Queen's coffin left Buckingham Palace at 2.22pm
Leading the procession was the Mounted Metropolitan Police, followed by a Dismounted Detachment of The Life Guards, the Household Cavalry Mounted Regiments, and the Bands of the Grenadier and Scots Guards.
The Bearer Party around the coffin is formed of troops from The Queen's Company 1st Battalion Grenadier Guards.
Harry and William walked side by side
Royal fans flocked to watch the cortege as it travelled along Queen's Gardens, The Mall, Horse Guards and Horse Guards Arch, Whitehall, Parliament Street, Parliament Square and New Palace Yard.
© Photo: Getty ImagesThe Queen Consort arrived by car
Shortly after 3pm the Queen's coffin was removed from the gun carriage and transported inside Westminster Hall by The Bearer Party. z
© Photo: Getty ImagesMeghan showed her respect for the late monarch
After Her Majesty's coffin arrived in Westminster Hall, the Archbishop of Canterbury led an emotional service. The Cross of Westminster was placed at the head of the coffin.
© Photo: Getty ImagesLady Louise was spotted at the service
Speaking to PA news agency on Westminster Bridge just before heading to the building for the service, he said: "I think it's going to be very, very emotional, as it always is for everyone, wherever they are.
© Photo: Getty ImagesThe Archbishop of Canterbury oversaw the service
"I was a parish priest for years, the moment when you see a coffin, particularly when you're one of the family, it pierces to the heart, there'll be so many people who know exactly what the family are feeling as human beings.
© Photo: Getty ImagesThe Queen Consort was joined by Kate, Meghan and Sophie
"So, let's pray for them and keep on praying for them because they need our support. They're having to do all this while they're grieving when most people are able to take a few days and just think about things."
© Photo: Getty ImagesThe Queen's eldest son was visibily moved by the poignant event
Four officers from the Household Cavalry – two from the Life Guards and two from the Blues Royals – began the first six-hour vigil around the coffin, taking their places at the corner of the catafalque.
© Photo: Getty ImagesZara and Mike Tindall were also in attendance
The public will be able to file past the coffin and pay their respects from Wednesday evening until 6.30am on the day of the state funeral.
© Photo: Getty ImagesPrince Harry and Meghan Markle held hands as they left
Royals fans are being warned that the large crowds mean queues can last for hours, possibly overnight, so it may not be suitable for younger children.
© Photo: Getty ImagesHer Majesty died "peacefully" at her Balmoral residence
Security measures are in place so only one small bag per person is permitted, and no flowers or other tribute items such as soft toys and photographs can be taken through the security search point. Those wishing to leave flowers are encouraged to go to the dedicated area in Green Park.
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