Kate Middleton is believed to be especially strict about one rule which applies to all the staff who work at the family home.
The Duke and Duchess of Cambridge live in Apartment 1A in Kensington Palace with their three children, George, 8, Charlotte, 6, and Louis, 3.
The couple has high standards when hiring new staff and expect all to adhere to their zero-tolerance approach when it comes to a particular issue.The household is reported to be a gossip free zone to avoid any staff squabbles and unnecessary attention.
Get exclusive celebrity stories and fabulous photoshoots straight to your inbox with OK!'s daily newsletter . You can sign up at the top of the page.
Read more on ok.co.uk