My mother had ancestors in your area and Ireland, but we will never know about who they were, her family isn’t famous and wasn’t wealthy, but my father’s line got to England in 1066, so we might have had family bumping into each other.
Chances are, that if you can trace to 1066, there was royalty in your bloodline.
I traced my father’s lines back into the 400’s... lot of royals, knights, kings, queens, etc. of almost any country in Europe that you can name.
However, keep in mind that there was LOTS of inter-marriages between royal relatives. Maybe that could explain some things. :-)