As you'd expect, there are some strict rules that people invited to attend the Coronation must attend.
Alongside some very detailed guidance on outfits, naturally, there are expectations on behaviour during the ceremony as King Charles and Queen Camilla are crowned.
Invited guests include David and Victoria Beckham, Stephen Fry, Prime Minister Rishi Sunak and US First Lady Jill Biden but her husband President Joe Biden will not be attending.