Prince William and Duchess Catherine are flouting tradition by bringing their children on royal tours with them.

Prince William, Duchess Catherine, Prince George and Princess Charlotte

Prince William, Duchess Catherine, Prince George and Princess Charlotte

The royal couple - who share four-year-old son Prince George and two-year-old daughter Princess Charlotte and are expecting their third child together - have had their son Prince George join them in New Zealand whilst both children were with their parents during a Royal Tour of Poland.

Historian Robert Lacy, who served as an advisor for 'The Crown', said: "She [The Queen] had been brought up in that style herself, after all, with her parents leaving her at home and entrusting her entire schooling to a governess and home tutors."

And Queen Elizabeth is a real family person, according to Lacy.

He told Town and Country: "Today Elizabeth II enjoys life as a mother, grandmother and great-grandmother. She clearly delights in the time she can spend with her family, and she seems to be anything but emotionally reserved.

"Would she have mothered her children differently if she had the chance? As one of her close friends has said, the Queen was rather scared of parenting when she started out - she'd not been taught it by her own mother. But as she grew into the job, her successive children helped remove her fears."