A source close to her and Prince Harry has revealed that the couple sent their wishes separately, as reported by Hello! magazine.
No further details were given on how former Sussex royals contacted Beatrice.
The couple were quarantined at the mansion of movie mogul Tyler Perry in Los Angeles after leaving the royal family on March 31.
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Kate also sent her greetings to Beatrice for her wedding day, but did so in a very different way.
The Duchess of Cambridge chose to congratulate Beatrice more publicly.
Kate and Prince William’s Kensington Royal Instagram account shared a photo with best wishes to the newlyweds.
The photo was accompanied by a caption which read: “Congratulations to HRH Princess Beatrice and Mr. Edoardo Mapelli Mozzi who got married in a small private ceremony at the Royal Chapel of
All Saints at Royal Lodge, Windsor Friday! ”
Royal commentators have called Beatrice the ‘most unlucky princess in the world’ after the delayed wedding.
Zoe Burrell suggested during a ROYALS podcast in March that Beatrice would have been devastated that her wedding had been postponed.
ROYALS host Angela Mollard added: “She is of course 31, her fiancé is 36. He already has a child, a young boy.
“I can imagine that Beatrice will want to have children and move on to married life fairly quickly.
“She must be feeling so devastated that her plans are messed up at this point. “
Meghan and Harry have however started their new lives in the United States, with Meghan being in high demand for public appearances.
According to public relations expert Mark Borkowski, Meghan may be able to charge up to six figures for speeches following her well-received speech at the Girl Up Leadership Summit.
But Mr Borkowski warned that interest in Meghan as a public figure could ‘wane’ over time.
He added to the Scottish Sun: “It’s a noisy world, there’s always the next grown-up to come out of the shadows.
“If you end up doing too much, if you’re the gun to hire and show up in the same places, your demand goes down.