The 60th anniversary of the Queen's coronation will be marked with a service at Westminster Abbey.
TheDuke of Edinburgh, the Prince of Wales, the Duchess of Cornwall and more than 20 other members of the royal family are expected to attend Tuesday's service.
The Duke and Duchess of Cambridge will return to Westminster Abbey for the first time since getting married there in 2011.
Prime Minister David Cameron will give a reading. Poet Laureate Carol Ann Duffy will also read a poem.
Queen Elizabeth II is the sixth Queen to have been crowned in Westminster Abbey in her own right.