Upon her marriage to Prince Harry in 2018, Meghan was granted the title of Duchess of Sussex by the late Queen Elizabeth II. However, there's another designation that is less frequently mentioned: Princess Henry of Wales, as reported by Express UK. This particular title derives from Prince Harry's given name, Henry.
In accordance with royal tradition, non-royal women who marry into the British royal family receive such titles. Nevertheless, it's noteworthy that these titles are not commonly used by these women.
For instance, when Kate Middleton wed Prince William in 2011, she was also bestowed with his title, Prince William of Wales. However, she opted not to employ it. Consequently, while Kate is often referred to as Princess by various publications, it's worth mentioning that this is not the most precise or politically correct term to describe her.
A notable development occurred recently when Kate was officially designated as Princess of Wales, following King Charles's ascension. In contrast, Meghan relinquished her royal role in 2020. This has sparked speculation regarding the potential revocation of her Duchess title. However, regardless of the outcome, Meghan can never formally be addressed as 'Princess Meghan.'
Notably, her children, Archie and Lilibet, hold the titles of Prince and Princess. It's interesting to highlight that Baroness Marie-Christine von Reibnitz, who is known as Princess Michael of Kent, is one of the rare instances where a non-royal woman has chosen to use her official title within the royal family.