Explained: Charles will be crowned in the coronation chair and the service will be led by the highest-ranking cleric in the Church of England, Archbishop of Canterbury Justin Welby
Millions of people across the UK and beyond are preparing to celebrate the coronation of King Charles III - a symbolic ceremony combining a religious service and pageantry.
While Charles was officially proclaimed King following the death of his mother, the Coronation of a new Sovereign in the UK takes place after their accession, following a period of mourning.
Royal Editor Robert Jobson sets the scene for the 40th Westminster Abbey coronation since 1066 and the biggest state occasion since the Queen was crowned