The Duchess of Cornwall has laid a wreath at the grave of a great uncle who was killed during the Battle of the Somme while serving with the Coldstream Guards.

It was the first time Camilla, accompanied by the Prince of Wales, had visited Carnoy Military Cemetery, where Cpt Harry Cubitt is buried.

He was the eldest of three sons killed during the war and the duchess told reporters a photograph had been placed beside the grave, although she did not know who left it.

"I have never seen a photograph of him before," she said.

"It is such a long time ago and it made me suddenly realise what it must have been like for my great grandparents, to have three sons within 18 months of one another being killed."