LONDON -- Taking a quick family photo at a birthday is typical for most of us -- not so much, though, if your family is the Royal family.
Prince Andrew uploaded an image of his mother, Queen Elizabeth II, brother Prince Edward and sister-in-law Sophie, Countess of Wessex, to his Facebook page on Tuesday.
"A family photo before we join the guests at my brother and sister-in-law's joint 50th Birthday Reception at Buckingham Palace, to recognise the important work with their many organisations - AY," the Duke of York said on Facebook, signing off with initials that stand for "Andrew York."
It's one of the first behind-the-scenes photos taken by a member of the Royal family, and posted to a social media account.
Last month, Prince William and Kate Middleton joined Twitter, Instagram and Storify.