Now the couple are planning a move to Frogmore House in Windsor to live permanently and raise the baby they will soon welcome to the world.
The Duchess of Sussex was born in LA and went to school in Hollywood, but she moved to Canada to pursue her acting career when she landed a role in Suits as sexy paralegal Rachel Zane.
While the actress has assimilated smoothly into royal life, there is one body language tick that picks her out as American, a body language has said.
Analysing Meghan and Harry’s handshake, Judi James noted the “cultural differences” between the pair.
She said: “There are enough similarities between Meghan and Harry’s handshakes to signal the very obvious like-minded rapport between the pair although some of Meghan add-ons hint at some of the body language cultural differences between the US and the UK, plus it will signal her more spontaneously tactile responses when she’s out on royal visits.”
Meghan uses two hands when she shakes, a more American habit, Judi said.
“The key difference between their handshakes is the type and amount of touch they use,” she said.
“In the US it is normal to use both hands to shake whereas in the UK we tend to stick to the one.”
She claimed the use of two hands signals warmth from the Duchess of Sussex, adding: “In a one-handed shake like Harry’s the ritual can be as formal as necessary, with any add-on tie signs of stronger friendship or warmth coming from the duration of the shake or a small touch on the arm.
“Meghan often uses her free hand to cup the hands as they shake though. This gesture signals instant warmth and empathy, plus a desire to talk for longer than the normal couple of lines of chat.
“Her royal duties often mean she’s hampered by carrying a clutch bag in her free hand but as we can see from this picture she still tends to bring that hand up in an intentional gesture to show that would be her desired form of handshake.”
But the couple’s handshakes also signify some of the similarities between them, according to the expert.
“Both Meghan and Harry will use close proximity when they’re shaking hands, which takes a formal greeting ritual and turns it into something a lot more intimate and meaningful,” Judi said.
“The technique implies undivided attention during the greeting ritual and small-talk and that in turn will make what can be a brief transaction appear even more memorable.
“Both Meghan and Harry are also very comfortable using eye contact when they shake hands and that makes them look engaged and interested, which can feel like an ego-boost for the person on the receiving end.
“One of the tricks of good networking skills is to make each meet and greet look fresh and this is something the Sussex’s seem to be able to do naturally.”
Meghan Markle’s baby is set to be born soon, with Kensington Palace announcing Harry and Meghan are expecting their birth in spring.
However, Meghan as been asked not to take pictures outside of the maternity ward, the Lindo Wing, as Diana and Kate have in the past.
The Duchess of Sussex was urged to put an end to the trend.
When is Meghan Markle’s due date? The latest odds have been released. With the due date of the baby fast approaching, the odds of the child being born on Easter Sunday – and sharing a birthday with the Queen – have been revealed.
Who is Meghan Markle? Quick profile
Meghan Markle was born Rachel Meghan Markle, on August 4, 1981 to parents Doria Ragland and father Thomas Markle.
Her father was previously married to Roslyn Loveless and Meghan has two elder half sibling – sister Samantha Markle and brother Thomas Markle Junior.
Meghan’s first television appearance in the USA was in an episode of the medical drama General Hospital in 2002.
She later moved on to roles in CSI, Without a Trace and Castle along with bit parts in Hollywood films including Get Him to the Greek, Remember Me and Horrible Bosses.
Meghan was also a “briefcase girl” on Deal or No Deal – but her most famous role was as Rachel Zane in legal drama Suits, which launched in 2011.
She was written out in the finale of the seventh series when her character got married, which aired in April 2018 – just before she got married herself.
Charity and humanitarian work
Meghan Markle’s career in television has gone hand-in-hand with her support for causes close to her heart.
She wrote about the stigma around menstrual health in an article for Time magazine and was a Global Ambassador for World Vision Canada – with whom she travelled to Rwanda for the charity’s Clean Water Campaign.
And her commitment to gender equality has seen her work with the United Nations – receiving a standing ovation in 2015 for her speech to mark International Women’s Day.
In September 2011, she wed film producer Trevor Engelson, who she began dating in 2004.
But the pair divorced two years later in August 2013, citing irreconcilable difference.
She was in a relationship with celebrity chef Cory Vitiello for almost two years, before they broke it off in 2016 but the two remain good friends.
And in June 2016, she met Prince Harry on a blind date set up by a mutual friend.
Their relationship began in October that year and just over one year later, on November 27, 2017, the pair announced their engagement.
They married on May 19, 2018 at St George’s Chapel in Windsor Castle.
Some have claimed Meghan Markle is the first mixed-race member of the Royal Family.
Historians are still arguing about Queen Charlotte, the wife of King George III.
But Meghan will be the first royal to openly embrace a mixed-race heritage.
She has written about the difficulties of being a biracial actress in Hollywood as she claims she is not black enough for some roles and not white enough for others.