Lady Louise Windsor was born to her parents, Prince Edward and Sophie, Countess of Wessex, as a tiny little premie in 2003, and is the youngest granddaughter of Queen Elizabeth — but she didn't know just how important her family members were to the British public until she started attending school. 

As noted by Town & Country, Louise has largely stayed out of the public eye in order to be given as much of a normal life as possible. That normality may have gone a step too far because, in 2016, her mom revealed to the BBC (via Town & Country) that Louise didn't realize that her grandmother was the queen of England. 

"Well, for Louise, actually, it was much more of a shock to the system," Sophie said. "It was only when she was coming home from school and saying, 'Mummy, people keep on telling me that grandma is the queen.' And I asked her, 'Yes, how does that make you feel?' And she said, 'I don't understand.' ... I don't think she had grasped that perhaps there was only one Queen."