Similarly, Harry’s father, then still Prince Charles, used the same styling: “His Royal Highness Prince Charles Philip Arthur George Prince of Wales.”
So why was Harry not styled the same way? According to Business Insider, the explanation may be simple: Harry’s legal given name is Henry Charles Albert David, and the title “Prince” is not technically part of that. Vanity Fair adds that “Prince” is considered a separate royal title rather than a component of a name — though that hasn’t always stopped it from being used officially in the past.

For instance, when Harry and Meghan announced their engagement in November 2017, the palace’s statement referred to him as “His Royal Highness Prince Henry of Wales.”
Confusing? Absolutely.
Prince Archie was born in May 2019, and his younger sister, Princess Lilibet, followed in June 2021 — just a year after Harry and Meghan stepped down as working royals and began their new life in California.