Harry and Meghan’s lawyers for the couple claim they were taken decision to sue ths person that took the shots because they want a peaceful life.
They also claim there were previous attempts to photograph them inside their home using long range lenses and that paparazzi were permanently camped outside their home.
This comes days after Harry and Meghan agreed a deal to step away from the Royal Family.
In a speech at a dinner for supporters of his Sentebale charity, the prince said the decision was made as they wanted to lead a more “peaceful life”.
“The decision that I have made for my wife and I to step back, is not one I made lightly. It was so many months of talks after so many years of challenges.
“And I know I haven’t always gotten it right, but as far as this goes, there really was no other option.”
Harry and Meghan’s lawyers also highlighted serious safety concerns about how the paparazzi had been driving in Canada.
Prince Harry’s mum, Diana, died on 31 August 1997 after the car she was in crashed into a concrete pillar in a Paris tunnel, whilst trying to flee paparazzi photographers.
Harry referenced this in his speech on Sunday, adding: “When I lost my mum 23 years ago, you took me under your wing. You’ve looked out for me for so long, but the media is a powerful force, and my hope is one day our collective support for each other can be more powerful because this is so much bigger than just us.”