Virtually every royal in history has been in some way memorialized through art. Once, great painters of the day would create portraits of kings and queens. But then photography was invented and everything changed. Suddenly, royals could be seen as they actually were. And their subjects could watch them grow up, picture by picture, which has continued right into the 21st century. These photos allow us to track how the British royal family has developed over the past 158 years. As you can imagine, a lot has changed.