Coronations have remained much the same for more than 1,000 years. The British ceremony is the only remaining event of its type in Europe.
However, it is likely to be shorter and smaller in scale than Queen Elizabeth II’s 1953 coronation, with a wider range of religions represented.
The Coronation Procession is also expected to be more modest. Queen Elizabeth’s procession had 16,000 participants, and took 45 minutes to pass any stationary point on the 7km (4.3 miles) route.
This time, the King and Camilla, the Queen Consort, will travel to Westminster Abbey in a relatively modern horse-drawn carriage which has electric windows and air conditioning.
They will ride in the Diamond Jubilee State Coach, first used in 2014, before returning in the Gold State Coach used in every coronation since the 1830s.