On Thursday, at a Privy Council meeting at Buckingham Palace, Her Majesty officially gave her written consent for Harry to marry Markle in May.
Similarly, Canadian luxury outerwear brand Sentaler got a lift from the actress in December 2017 when she was pictured wearing one of the label's coats to a Christmas church service attended by the royal family. Whatever it was, Harry raised his eyebrows at Markle, who laughed discreetly.
He said: "You know, at the heart of it is two people who have fallen in love with each other, who are committing their lives to each other with the most lovely words and profound thoughts, who do it in the presence of God".
Mountbatten-Windsor is the surname given to all descendants of the Queen and Prince Philip - unless it's a female who marries.
Now that's a mouthful for Meghan to say at the alter.
The Queen's Marriage Consent Was Not As Shady As You Thought
Sure, our initial thought was the queen watched one too many episodes of Suits and mistakenly called Markle by her character's name, Rachel Zane.
The Queen has now formally given her permission for the pair's marriage in accordance to English tradition.
It's not known at what stage Meghan made a decision to go by her middle name, but it's not uncommon for celebrities to have a switch-up when it comes to their moniker in Hollywood.
The 36-year-old has since taken part in her first official public engagement with the Queen, joining her and other leading members of the royal family for the Commonwealth Day service at London's Westminster Abbey on Monday (12Mar18). His official title? Prince Henry of Wales, although he's known by his nickname Harry.
When the two tie the knot in May, Meghan and Harry will be bestowed with an official peerage like a dukedom or an earlship, the same way Will and Kate became 'the Duke and Duchess of Cambridge'. But Harry needed more than that before he can legally marry Meghan.