Never investigated.... simply because I don't care much.
I know my "roots" are in Germany, Denmark and England (but going back to the Garden of Eden, LOL). I'm sure all those - going back to Adam and Eve - had names, they all had successes and failures, but ultimately, I can't take any "credit" for their good or "blame" for their bad. I'm thankful to them (or I wouldn't be here) and in a sense, they (like most people on Earth before me) impacted me and the culture in which I live and I acknowledge that impact. But I just don't need to know their names or the details of their specific, unique, individual lives.
But hey, I have NOTHING against those who are interested.
.