The oldest monarch to ascend to the British throne, he received flowers, cheers, and even kisses after traveling from the Balmoral retreat where his 96-year-old mother passed away peacefully.
Earlier, church bells and ceremonial gun salutes for the departed monarch rang out across the United Kingdom as it tries to come to terms with the passing of the only monarch most have ever known.
Charles will be formally proclaimed king by the Accession Council, comprising other royals and political and religious figures including Queen Consort Camilla, Prince William, Prime Minister Liz Truss, and the Archbishop of Canterbury.
The centuries-old proceedings will be televised for the first time.
The council will first meet without Charles at 10:00 am local time inside St James’s Palace to proclaim him. Then he will join it to make a formal declaration as king and sign official documents.
The “principal proclamation” will be read to the public at 11:00 am from a balcony at St James’s Palace -- which sits near Buckingham Palace -- following a fanfare by three trumpeters.
It will then also be read out in Scotland, Northern Ireland, and Wales.
His own person
As Charles’s pre-recorded address was broadcast to the nation, dignitaries attended a remembrance service for his mother at St Paul’s Cathedral which saw the first official rendition of the updated national anthem “God Save the King”.