Wow that's so great. It really took you so long to discover them. Me, I have known and seen all my aunt and uncle in my mother's side as they are all just living in the same island as we are Mindanao of Philippines but on my father side, I haven't met some and I don't met my cousins because some of them were living in Luzon and other is in other countries. I am not so connected to them.
But it is good in your side that you dig in the history until to your great great great grandparents.
Yep, going back to the mid1400's with my family history has been interesting. Sure, I'll never know them, but I know them better than I did before and that's good enough.
1400's? Oh that really too far with us. But yes it might be interesting.
It was to me, and that's what counts.