Williams, who welcomed daughter Alexis Olympia with husband Alexis Ohanian in September 2017, also shared that while she is giving the Duchess of Sussex plenty of advice from one new mom to a soon-to-be parent, Meghan "still gives me more advice".
A courtier in the Royal Household added: 'He will brook absolutely no criticism of Meghan - and he is so sensitive he often sees criticism or negativity when there isn't any'.
But by far the tastiest spat - if true - is the so-called one between Meghan and Kate, between whom relations are said to be frosty ever since it was revealed that Harry and his new bride are leaving Kensington Palace and moving to Windsor. You're the pregnant one - aren't you supposed to have hormones? The 37-year-old royal also attended Meghan's royal wedding ceremony to Prince Harry in May.
At first it was thought that Prince William's wife Kate didn't get on with the American actress Meghan.More news: Twitter reacts to controversial Wilder-Fury draw
More news: Trump to nominate State Department spokeswoman as United Nations ambassador
More news: Michelle Obama: Michelle Obama uses cuss word in NY
They are two of the most recognisable women in the world, both renowned for their passionate activism - and with very high-profile husbands to boot.
Meghan Markle's days used to be filled with call times, memorizing lines, performing in front of the camera, and working on her former lifestyle website, The Tig.
But the tennis legend's best piece of advice to first-time moms?
In a break with tradition, Meghan is reportedly planning to have a home birth at Frogmore Cottage, as opposed to giving birth in the Lindo Wing at St. Mary's Hospital, as the Duchess of Cambridge has done with her three children. "I bet her brother James wore shorts as a boy and Sophie Wessex has dressed her son in a similar fashion", Hanson said.
"We always have supported each other, just been there for each other through a lot".
Get awesome content delivered to your inbox.