The Suits actress had written on period poverty and campaigned for equal pay.
Now an expert has claimed that the Duchess of Sussex has “changed the dynamic” within the Royal Family.
It comes after The Sunday Times claimed Harry and William may break up their joint offices.
This would see the two brothers work more separately in future.
Pregnant Meghan and Harry have recently toured Australia, Tonga and Fiji together.
This could be the beginning of many more solo trips for the married pair.
Royal expert and author Sally Bedell Smith told People: “The arrival of Meghan has changed the dynamic of the relationship in a fairly significant way.
“It is inevitable and practical because it gives Harry and Meghan some freedom to build up their own collection of interests and charities.”
The royal expert hinted that the Duchess of Sussex’s strong views could, in part, be behind the decision.
She added: “Meghan has very strong views on what she is interested in and that may be what Harry shares, but not what William and Kate share.”
Meghan’s history in feminist campaigning began when the actress was young.
As her page on the royal website reads: “Aged 11 she successfully campaigned for a company to alter their television advert that had used sexist language to sell washing-up liquid.”
At the UN on International Women’s Day 2015 Meghan told crowds: “I am proud to be a woman and a feminist.”
Meghan Markle’s baby name for her future child has caused much speculation.
And expert has revealed why the Queen might allow “unique” baby name.
Carolyn Harris, author of Raising Royalty: 1,000 Years of Royal Parenting, told Vogue Australia: “The further down the line of succession, the more likely you are to have a more unique or untraditional name.”
“We see, from the diversity of names among the Queen’s descendants, that the Queen does seem willing to allow the descendants to choose their own names.”
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.