Meghan, Duchess of Sussex's bodyguard has quit after only six months and is the third royal aide to have resigned in the last three months.
She replaced Seargeant Bill Renshaw, Harry's long-serving head of security following his retirement after 30 years in the field.
According to The Sun, a Scotland Yard (police service responsible for policing most of London) source said: "Unlike someone who has grown up in the Royal Family and has been used to close protection from an early age, having it can be quite constraining".
It comes just weeks before Meghan and Prince Harry are due to move into Frogmore Cottage in the grounds of Windsor Castle ahead of the birth of their first child.
Her decision to quit follows the departure of the duchess's personal assistant, Melissa Touabti, who left the palace a year ago after six months in the job. Royal biographer Robert Jobson claimed in his book, Charles at Seventy, that a stressed-out Harry became "short-tempered" with staff and insisted: "What Meghan wants, she gets".
'But in her current role she can't go anywhere without her protection team and that's a massive constraining force on an individual like her'.
The duke and duchess's private secretary, Samantha Cohen, is also set to leave as planned later this year.
This story first appeared in The Sun and is reproduced here with permission.