King Edward VII hospital, in central London, where the Duke of Edinburgh is being treated PIC: Dominic Lipinski/PA Wire

Prince Philip spent a second night in hospital last night with a bladder infection.

The Prince, 90, is set to miss a lunch today in honour of the Diamond Jubilee, as a result.

Queen Elizabeth II shall sit down for the meal laid on to mark the anniversary with Commonwealth leaders, including prime ministers, governor generals and high commission representatives,

The Duke of Edinburgh was due to accompany her to the event at Marlborough House on Pall Mall

His youngest son, The Earl of Wessex, said Philip, 90, was “feeling a lot better”, adding that “a good rest is probably what is required”.

The lunch follows four days of pomp and pageantry, which drew well-wishers to London from all over the world.