No doubt.
But what's your proof? Most people couldn't prove it.
Your blood type might possibly give a hint.
My blood type is B-negative. Highest percentage of B-negative blood by ethnic type? Hungarian gypsies. My great grandmother was born in Hungary, as it turns out.
I have some pretty good family records and family history. I don't need proof beyond that. I also has my great grandmother's hair... dark, straight, course.