06/06/2015 04:39 EDT | Updated 06/06/2016 05:59 EDT

Princess Charlotte, Prince George photographed together for 1st time

Princess Charlotte and her brother Prince George have appeared together in their first official photo, which was released Saturday by Kensington Palace via Twitter. 

Born May 2 to Prince William and the Duchess of Cambridge, Charlotte is the fifth great-grandchild of Queen Elizabeth II and the fourth in line to the throne, after her grandfather Charles, her father William and her older brother George, who is almost two.

William and Kate introduced the baby princess just 12 hours after Kate checked into London's St. Mary's Hospital to give birth on May 2. The baby weighed in at eight pounds, three ounces.

The baby's full name has been registered as Her Royal Highness Princess Charlotte Elizabeth Diana of Cambridge.

Princess Charlotte is to be christened on July 5 by the Archbishop of Canterbury on the Queen's Sandringham estate in Norfolk.