Romilda

To me this name is completely fashionable and charming, plus it comes with the darling nickname Romy. Win win. It's a good pick for any would-be parents.

I like it a lot, prettier than Millicent and you can still use the nicknames Milly and Millie.

I actually really like this name and can see a lot of adorable nicknames for it being used. I know of a girl by this name and her parents call her Romily as a nickname.

Romy and Milly/Millie are potential nicknames for this name.

This name has a really pretty sound to it, and I love lesser-used Italian names. I've studiously avoided the Harry Potter franchise, so I wouldn't have known it's used in there.

Don't like the Harry Potter character, love the name.