This time five years ago, Prince George and Princess Charlotte were getting used to life with a new baby brother, after their mum Princess Kate gave birth to Prince Louis.
The young royal's fifth birthday celebrations last week was no doubt a momentous day for the family, but the date of his birth will go down in history for another reason too.
A change in the law in 2013 meant that when Kate gave birth to her Louis at 11.01am on April 23, 2018, Charlotte made history.
