According to BBC News:
A photograph of the Queen and the Prince of Wales has been released to mark the end of her 90th birthday year.
The photo shows the Queen with her son Prince Charles in the White Drawing Room at Windsor Castle.
Previously unpublished, it was taken before the final night of celebrations at the Royal Windsor Horse Show in May.
The Queen, who last year became Britain’s longest-reigning monarch, turned 90 years old in April.
She celebrated the occasion with a series of events, including a private black tie banquet at Windsor Castle with her friends and loved ones.
