A few years ago I read a book with that title. I wonder if it was the same story. In the book it was a servant girl in the household where the artist was working or living. I wonder if the owner’s daughter would have been wearing such a plain headdress, so the idea of this being a servant girl made sense to me.
A novel?
https://search.brave.com/search?q=the+girl+with+the+pearl+earring&summary=1
[snip] The work acquired its current title in the late 20th century, having previously been known as Girl with a Turban. [/snip]
Book:
https://www.penguinrandomhouse.com/books/292577/girl-with-a-pearl-earring-by-tracy-chevalier/
Movie:
https://www.imdb.com/title/tt0335119/