Photo: John Stillwell/PA WirePhoto: John Stillwell/PA Wire

Prince George is seen walking in an official photograph released to mark his first birthday. It was taken during a visit with his parents to the Sensational Butterflies outdoor exhibition at London’s Natural History Museum. The youngster will celebrate his first birthday today when the Duke and Duchess of Cambridge are expected to hold a birthday party for him at their Kensington Palace apartment with close family and friends.

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