A photo of the Queen horse-riding with her two youngest grandchildren has been released to mark the start of the Royal Windsor Horse Show.
Pictured on her black pony, the monarch is flanked by three-year-old Viscount James Severn on her left and seven-year-old Lady Louise Windsor on her right.
The two youngsters - both wearing riding hats - are the children of the Earl and Countess of Wessex.
Lady Louise was one of the bridesmaids at the royal wedding.
The show runs until Sunday and takes place in the grounds of Windsor Castle.
Photo: © Royal Collection