According to black Dutch researcher Egmond Codfried and author of the book "Belle van Zuylen's forgotten grandmother" there was black nobility in Europe, but there history and images were later carefully tucked away.
"Never Judge a Book By Its Movie." In other words, if you want to read a book, you probably shouldn't see the movie. Most likely, it'll ruin your excitement for the actually high quality of the book. *Ahem. MORTAL INSTRUMENTS.