The monarchs' lunch, with a menu that included English asparagus, lamb from Windsor and strawberries from Kent, is part of celebrations of the Queen's Diamond Jubilee, marking her 60 years on the throne.

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The choice of 2011 as the year for the wedding makes sense, she said, because the Olympic Games take place in London in 2012, the same year the queen plans to celebrate her Diamond Jubilee, marking 60 years on the throne.

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Her Majesty is marking her Diamond Jubilee this year.

BBC: Salmond leads Holyrood Diamond Jubilee tributes

Rarely seen documents chronicling the life and reign of Queen Victoria have been made public on a new website marking this year's Diamond Jubilee.

BBC: Queen Victoria archive goes online

Before the bladder infection, which he initially contracted during events marking the queen's diamond jubilee, he spent four nights in a hospital over the Christmas holiday last year for treatment of a blocked coronary artery.

CNN: UK's Prince Philip, 91, released from hospital