Julia and _____?

I named my pets Winston and Julia from the book 1984. Unfortunately, Winston passed about a year ago, and I am finally ready for another cat.

Does anyone know of any dynamic duos or romantic pairings from a fiction book in which one is named Julia? Please include title and author so I can read it before making a decision.

Boy or girl characters welcome – I don’t care if the name will not align with gender – I just want my cat to be named after a cool or interesting or funny fictional character (and also read some new books).

Thanks.