Look at the summary of the proclamation of Carlos III 2:43
London (CNN) --
King Charles III will dedicate "what remains of my life" to "the heavy task entrusted to me" after being formally confirmed as the new king of the United Kingdom in a tradition-filled ceremony in London. St. James's Palace on Saturday.
Charles became monarch after the death of Queen Elizabeth II on Thursday, but Saturday's event officially confirmed the transition of power.
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The king paid tribute to his mother before the assembled Ascension Council, saying his mother "set an example of lifelong love and selfless service."
King Charles paid tribute to his mother, the late Queen Elizabeth II, in a speech during her proclamation, saying: "Her reign was unmatched in length, dedication and devotion. Even as we grieve, we give thanks for this life." faithful".
Carlos was formally proclaimed monarch on Saturday, although he became king after the death of his mother.
The ancient ceremony at London's 500-year-old St. James's Palace has two parts.
In the first part, the death of the sovereign was formally announced and the new sovereign was proclaimed.
It was a closed-door meeting, without King Charles III, attended by dignitaries and members of the Privy Council, which is a panel of royal advisers.
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British Prime Minister Liz Truss was joined at the event by several of her predecessors in office, including Boris Johnson, Theresa May, David Cameron and Gordon Brown.
Charles was officially proclaimed "king, head of the British Commonwealth, defender of the faith" by Secretary of the Privy Council Richard Tilbrook, who then declared "God save the king", which was echoed by the crowd in the packed room.
The proclamation confirming Charles as king was signed by his son William, the new Prince of Wales, and his wife Camilla, the Queen Consort, both members of the Privy Council.
It was also signed by council members President Penny Mordaunt, Truss and the Archbishop of Canterbury Justin Welby.
The second part of the Ascension Council was attended by the king.
King Charles also passed orders declaring the day of Queen Elizabeth's state funeral a bank holiday in the UK.
Britain's King Charles III speaks in the Throne Room at St. James's Palace during the Accession Council in London on Saturday.
Next to him were his son, Prince William, and his wife Camilla, the queen consort.
(Jonathan Brady/Pool/AFP/Getty Images)
Outside the palace, in Friary Court, trumpeters played along with a military display, while a salute of arms echoed across the capital from the Tower of London and in Hyde Park after the ceremony.
A second proclamation took place an hour later in the heart of the City of London's financial district, the Royal Exchange.
Members of Parliament took the oath of allegiance to King Charles III in the House of Commons on Saturday afternoon.
King Charles III was expected to hold audiences at Buckingham Palace with religious and political leaders on Saturday afternoon, according to a statement from the palace.
The king met with the Archbishop of Canterbury and the Dean of Westminster, Buckingham Palace said.
He was also to receive the Prime Minister and members of the Cabinet, as well as the leaders of the opposition political parties.
Carlos III greets upon his arrival at Buckingham Palace.
Back at Balmoral, members of the royal family, dressed in black, said goodbye to well-wishers at the gates of the royal estate on Saturday afternoon, following their return from a private church service.
Prince Andrew, Duke of York and second eldest son of the late queen, embraced his daughter, Princess Eugenie, after a walk with the public.
The Duke of York thanked members of the public for attending, as the royal family was greeted by people waving, clapping and laying wreaths in honor of the queen.
"We were allowed one day, now we start the process of handing it over," he said, according to PA Media.
CNN's Isa Soares, Max Foster and David Wilkinson contributed to this report.
Charles III Queen Elizabeth II
