Katie Nicholl, a royal correspondent and novelist, believes the pair’s decision to leave the Royal Family and relocate across the pond demonstrates their love and unity as a marriage.

Katie told OK!: “In only four years they’ve been on an extraordinary journey, making such huge decisions.

“But as Harry said, they are in it together, as a team,” adds Katie.

“When you think about what they’ve turned their backs on, what they’ve given up and particularly the sacrifices Harry has made, it’s just as well they’re such a strong unit because they’ve only really got each other.

“Meghan’s only family connections are with her mother Doria, and Harry’s ties with his family are hanging by a thread.”

The Duke and Duchesses’ solitude may have strengthened them as a royal marriage, according to royal author Nigel Cawthorne.