Royal rules regarding curtsiescan be confusing, and some individuals disagree on what constitutes proper protocol.
This applies to anyone possessing the HRH title, whether they acquired it at birth or via marriage.
His and Her Royal Highness titles belong to a select few.

Sometimes, however, HRH titles can be taken away.
Drafted in 2005 and later updated, some claim it stipulates a hierarchy of royal curtsying.
A 2022 article inThe Telegraphdescribed varying curtsying scenarios depending upon which royals were together at a particular moment.

Joe Little, Majesty Magazine’s managing editor, lambasted this interpretation as incorrect.
“Royal Highnesses bow and curtsey only to Majesties.
Why is that so hard to understand?

Nothing to do with the order of precedence.”
Initially, Meghan didn’t realize Harry was serious.
Based on this limited experience, Meghan did the best she could with her first-ever curtsy to the monarch.
Luckily, there’s no one way to do a royal curtsy.