Kate Middleton
Kate Middleton supposedly made some changes after the Queen's criticism many years ago. Catherine, Duchess of Cambridge is pictured on Jan. 22, 2019 in Lewisham, England. Adrian Dennis - WPA Pool/Getty Images

Kate Middleton is now the Duchess of Cambridge and the mother of the future King of England. However, before she married Prince William, Queen Elizabeth II reportedly worried that Kate wasn’t cut out for royal life and gave Kate criticism that led to some changes.

In the book “William and Harry: Behind the Palace Walls,” author Kati Nicholl writes that the Queen was not impressed with Kate’s luxurious pastimes. She and Prince William seemed to always be either skiing or visiting the Caribbean. “Kate was there so often the press dubbed her ‘Queen of Mustique’, a title that had previously belonged to Princess Margaret,” Nicholl explained (via Express).

As “The Crown” viewers know very well, The Queen was never happy about Princess Margaret’s reputation as a party girl. She certainly didn’t want Prince William’s future wife to be known for her luxurious taste.

“Britain was now in recession and such frivolous displays of wealth were unpalatable to the Queen,” the author noted. The Queen also thought it was “unacceptable” that Kate didn’t have a full-time job.

Though this criticism allegedly “stung” Kate, she made some changes after. It was revealed that she had a job at her parents’ party supply business, and she also took the Queen’s advice to start working with a charity. She became involved with Starlight, a nonprofit that works with terminally ill children, the first of many charity projects for the future Duchess.