So my grandfather was [tribe redacted, we don’t know but we have two good leads], “adopted”/kidnapped by a white family and had his history erased. Fucked him up, which had a nice compounding generational effect.

Long story short, it’s not very hard to trace most people’s ancestry back to the 17th century. The people who it is hard, I’m not a specialist but pretty much every family has some claim of descending from a god. It makes for good stories of birthrights of kings and every family is related to the king of course.