King Charles will once again appear in public this morning as he is proclaimed in central London, with huge crowds expected to attend.
His mother, Her Majesty The Queen, died aged 96 on Thursday evening (September 8) after a monumental lifetime of dedicated service.
The monarch, whose reign lasted an incredible 70 years, passed away peacefully at her Balmoral home surrounded by some family members, while others raced to her estate in the north of Scotland in attempts to be by her side.
In the coming weeks and months, the nation will undergo huge changes, from the words of the national anthem changing from 'Queen' to 'King' to the faces of stamps.
Meanwhile other members of the Royal Family assume new titles, roles and residences as per the line of succession.
Although Charles became King the moment his mother died due to an ancient law - the Act of Settlement 170 - the Accession Council will take place at 10am today (September 10).
It is a ceremony held as soon as possible after the death of a reigning sovereign to make a formal announcement of their successor.
King Charles will make a personal declaration about the death of the Queen, who he paid a heartfelt tribute to yesterday in his first televised speech as King.
His wife Camilla, now known as the Queen Consort will be in attendance supporting him, as well as the King's eldest son, William, who yesterday became the Prince of Wales.
The Accession Council is a ceremonial body which assembles in St James's Palace in London upon the death of a monarch to make formal proclamation of the accession of the successor to the throne.
While the Accession Council takes place just days after the Queen's death, King Charles' coronation won't take place for several months.
There are some major differences between the two ceremonies. While the Accession is a sombre affair, and a time for reflection, the coronation is likely to have a much more celebratory tone, as King Charles looks to the future.
A coronation is the simple act of placing a crown on a monarch’s head. It is likely to take place in a few months time, although no exact date has been given yet.
The term coronation is also commonly used to describe the whole ceremony – and all the exciting events that surround it. It is sure to be a lavish affair.
The coronation of Queen Elizabeth II took place 69 years ago on June 2, 1953, at Westminster Abbey.
Lasting three hours, it was the first British coronation to be televised and more than 8,000 guests attended.
It was also the fourth and final coronation of the 21st century. King Charles' reign, of course, will be a fraction of the Queen's, but he will undoubtedly leave his mark as he follows in his mother's footsteps.
This weekend, the Daily Mirror and Sunday Mirror celebrate the life of Her Majesty the Queen with a commemorative special filled with all the key moments from Britain’s longest reigning monarch. Be sure to pick up your copy of the Daily Mirror and Sunday Mirror to get both pullouts.
