The Duke of Cambridge waas also ful of praise for the portrait.
Prince William said:: "It's beautiful, it's absolutely beautiful."
The Cambridges later attended a private breakfast reception at the London gallery to mark the unveiling.
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The granite sea defences at Happisburgh in Norfolk are being moved a hundred yards back to protect cliffs from the tide.
Four people have today been convicted of the serious child sexual abuse and cruelty of children.
People across the East are being warned not to attempt clearing giant hogweed and other invasive plants without professional advice.