In Pictures: Duke of Edinburgh through the decades

The Duke of Edinburgh, centre, was a pupil at Gordonstoun School in Moray, Scotland

Princess Elizabeth and the Duke of Edinburgh had their first child, Prince Charles, in 1948

Philip and the Queen have met countless foreign dignitaries, including US presidents such as Gerald Ford and his wife Betty at the White House

The duke with Prince Edward, the Queen, Prince Andrew, Princess Anne and Prince Charles in the grounds of Frogmore House, Windsor, in 1968

The duke being playful with Anne, while holding Charles, in the grounds of Clarence House in 1951

The duke served in the forces and paid a surprise visit to Iraq to see British troops serving in Basra in 2006

Philip has been known for his sense of humour and occasional gaffes

The Queen and the Duke of Edinburgh were greeted by huge crowds when the Queen turned 90

Philip and the Queen enjoy spending time in Scotland, including regular visits to the Braemar Royal Highland Gathering

They have been married since 1947

Well into his nineties, the Duke of Edinburgh drove carriages during the Royal Windsor Horse Show in Windsor, Berkshire

But the duke surrendered his driving licence last year after a crash near Sandringham