Members of the Royal family, including Prince Harry, have also arrived at Westminster Abbey.
Seven former prime ministers gathered to attend the coronation, including Liz Truss, whose brief tenure in No 10 included the late Queen’s death and the King’s accession.
Ms Truss followed her predecessors Boris Johnson, Theresa May, David Cameron, Gordon Brown, Sir Tony Blair and Sir John Major into Westminster Abbey.
Controversy also surrounded the arrival and attendance of Prince Andrew, who was booed by members of the public as he was driven down The Mall.
. King Charles III arrives for his coronation ceremony in Westminster Abbey
King Charles III arrives for his coronation ceremony in Westminster Abbey, London. Photo: Jonathan Brady
. The Prince and Princess of Wales arriving at the coronation of King Charles III and Queen Camilla
The Prince and Princess of Wales arriving at the coronation of King Charles III and Queen Camilla at Westminster Abbey, London. Photo: Phil Noble
. The Duke of Sussex at the coronation of King Charles III and Queen Camilla at Westminster Abbey
The Duke of Sussex at the coronation of King Charles III and Queen Camilla at Westminster Abbey Photo: Andrew Matthews
. The Duke of York arriving ahead of the coronation ceremony of King Charles III and Queen Camilla
The Duke of York arriving ahead of the coronation ceremony of King Charles III and Queen Camilla at Westminster Abbey Photo: Jacob King
. Prince George
Prince George ahead of the coronation ceremony of King Charles III and Queen Camilla at Westminster Abbey. Photo: Jacob King
. The Prince and Princess of Wales arriving at Westminster Abbey
The Prince and Princess of Wales arriving at Westminster Abbey, central London, ahead of the coronation ceremony of King Charles III and Queen Camilla. Photo: Andrew Milligan
. Katy Perry, Edward Enninful and Alison Johnstone
Katy Perry, Edward Enninful and Alison Johnstone, Presiding Officer of the Scottish Parliament arriving ahead of the coronation ceremony of King Charles III and Queen Camilla at Westminster Abbey. Photo: Jane Barlow
1. King Charles III arrives for his coronation ceremony in Westminster Abbey
King Charles III arrives for his coronation ceremony in Westminster Abbey, London. Photo: Jonathan Brady
2. The Prince and Princess of Wales arriving at the coronation of King Charles III and Queen Camilla
The Prince and Princess of Wales arriving at the coronation of King Charles III and Queen Camilla at Westminster Abbey, London. Photo: Phil Noble
3. The Duke of Sussex at the coronation of King Charles III and Queen Camilla at Westminster Abbey
The Duke of Sussex at the coronation of King Charles III and Queen Camilla at Westminster Abbey Photo: Andrew Matthews
4. The Duke of York arriving ahead of the coronation ceremony of King Charles III and Queen Camilla
The Duke of York arriving ahead of the coronation ceremony of King Charles III and Queen Camilla at Westminster Abbey Photo: Jacob King