On Wednesday, Prince William and Prince Harry will walk behind the Queen’s coffin in a parade in London.
The brothers will accompany the King on foot from Buckingham Palace to Westminster Hall, where the Queen will lie in state.
The procession is scheduled to depart the palace at 14:22 BST and arrive at Westminster Hall at 15:00 BST.
The Archbishop of Canterbury will next conduct a service lasting around twenty minutes.
Princess Anne, Prince Andrew, and Prince Edward, the three siblings of the King, will also participate in the procession.
Camilla, Queen Consort, and Catherine, Princess of Wales, as well as Sophie, Countess of Wessex, and Meghan, Duchess of Sussex, will travel by automobile.
On Saturday, Prince William and Prince Harry, accompanied by their wives, appeared before crowds assembled in front of Windsor Castle.
The party came in the same automobile and spent approximately forty minutes visiting mourners and perusing the flowers placed for their grandmother.
It was the first time the brothers were seen together in public since their grandfather, the Duke of Edinburgh, passed away in April of last year.
During the Platinum Jubilee festivities in June, both attended a service of thanksgiving in St. Paul’s Cathedral but sat on opposite sides of the cathedral.
In his Friday evening broadcast speech to the nation, the King praised Harry and Meghan.
After announcing that William and Kate would become Prince and Princess of Wales, he added, “I also want to convey my affection for Harry and Meghan as they continue to build their life abroad.”
In a tribute to the Queen posted on Monday, Prince Harry also expressed his desire to “honor my father in his new capacity as King Charles III.”
Maj. Gen. Christopher Ghika, commanding officer for the procession to Westminster Hall, stated that 800 to 1,000 members of the armed forces would participate in the parade.
He told: “It’s a really sad job, but it’s a rare honor to take part in the armed forces last duty to our Queen.
This afternoon will be quite special in terms of poignant photos of the Queen leaving Buckingham Palace for the last time.
The first mourner in line to attend the Queen’s lying-in-state at Westminster Hall began waiting on Monday. Approximately 400 000 individuals are anticipated to attend.
Kate Paysen, 58, flew from Lisbon to attend the state funeral.
Ms. Paysen, a native of the United Kingdom, said: “I always imagined that when the Queen passed away, I would pay my respects.
My father served in the military, and I was raised in a royalist household, therefore I believe it is necessary to participate in history. I believe the Queen has always made me feel British pride.”
People can view the lying-in-state beginning Wednesday at 17:00 BST. It ends at 06:30 on Monday, the morning of the funeral for the Queen.
According to government guidelines, the line is anticipated to be quite lengthy, with people standing for “several hours, even overnight” with little opportunities to sit.