The 60th anniversary of the Queen's coronation is to be marked by a service of celebration at Westminster Abbey.
The service is expected to be one of the major highlights of this year's coronation celebrations along with a four-day festival in Buckingham Palace Gardens in July.
Buckingham Palace said the service will take place on Tuesday June 4, a few days after the 60th anniversary of the coronation, followed by a lunch.
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The Queen, Duke of Edinburgh and other members of the Royal Family will attend the event, which is likely to attract thousands to the streets of London.
Foreign dignitaries are expected to be among the congregation along with leading UK figures - from Prime Minister David Cameron and members of his Cabinet to military chiefs.
Buckingham Palace has also confirmed the Queen and Philip will be travelling to Rome from March 6-7 for their traditional spring tour.
No further details were released and it is not known if the Queen will be meeting the Pope.