Kate Middleton has a secret name she uses whilst shopping - in order to stop people from recognising her.
The Duchess of Cambridge, 40, will have staff at Kensington Palace who will do her food shopping but occasionally Kate likes to sneak off to do her own shopping.
The Express reported she uses a specific name which is designed so shopkeepers don't recognise her when she's out.
It started when The Duchess was unable to pay for an item - and had to reserve it under a secret name.
The embarrassed Kate had to use a different name to cover up a shopping blunder because she accidentally forgot her purse.
This was during the early years of her marriage to Prince William.
Shortly after their wedding in 2011, the Duke of Cambridge was stationed in Anglesey in Wales, as a search and rescue pilot at nearby RAF Valley.
To be closer to her husband, Kate rented a farmhouse nearby and was often seen by locals popping into nearby shops.
However, she suffered a blunder during one trip to the shops when she accidentally forgot her purse.
Kate was trying to purchase a water suit in a watersports shop called Funsport near her home.
As she went to the till to pay, she realised she was unable to pay for the item.
The Duchess prevented it from being a wasted trip by giving the shopkeeper a secret name.
Kate went up to the tills to ask if she could reserve the wetsuit to collect it at a later time.
When the shopkeeper asked for her name, the Duchess replied: “Mrs Cambridge”.
At the time a source told the Mail on Sunday: "He [Bucky] was happy with that, but then produced a pen and asked for her name.
“Perhaps she was trying to play down her destiny as future Queen, but she replied ‘Mrs Cambridge’.
"He was looking straight at her and actually commented that it was quite an unusual surname.
“He hadn’t a clue who she was.
“She just smiled and said she’d be back.”
The British royals also have bodyguards tasked with keeping them safe.
Therefore, the bodyguards will often use different names to describe the royals to protect them.
William and Kate are code-named "Danny Collins" and "Daphne Clark," according to the Daily Mail.
Meanwhile, Prince Harry and Meghan Markle are reportedly known as "David Stevens" and "Davina Scott" in coded communications.
