I know Jewish people were the principal target of the final solution, but other groups like homosexuals, Romani and others were also targeted. But I can't remember hearing anything about other "races", like people of african or asian descent. How many people in those groups might have been in Germany before WWII and how did they fare?
Just as a sidenote: "gypsy" is a racial slur and Romani is a better descriptor of these peoples at least in my experience