A single mum from Norfolk who made thousands from a picture of the Royal couple she snapped on her phone has been hired to photograph the crowds in Windsor tomorrow.

https://twitter.com/Anvilius/status/947514706813685761

Karen Anvil photographed Prince Harry and Meghan Markle walking to church on Christmas Day with Prince William and the Duchess of Cambridge.

She was standing in the crowds of well wishers who traditionally gather outside Sandringham Church, where the Queen and her family attend morning service on December 25.

The picture of the two Royal couples smiling at the camera went viral on social media and made all the front pages the following day.

Ms Anvil, 40, who lives in Watlington near, King's Lynn and works at the Queen Elizabeth Hospital, said earnings from the picture had been 'life changing'.

https://twitter.com/Anvilius/status/971715344279724033

While she has not revealed the amount, the money has helped her to pay off debts and help towards her daughter Rachel's university fees.

She later met Prince Harry, who told her he hoped the picture had made her a lot of money.

Tomorrow she will be in the grounds of Windsor Castle taking pictures for the BBC.