I'm looking for some help understanding my dad's DNA results. We've done a lot of work on his paper ancestry and while we have a few small gaps here and there, we pretty much have 7 generations going back. He's about 75% German (we can trace them back to Germany), 21% Scottish/Welsh and 4% we're not sure about but suspect Irish and/or French Huguenot. We've found cousins matching on a lot of these lines so I don't think there's a lot of NPEs (everyone has a couple at a certain point).
Now here's his DNA profile:
England, Wales, and Scotland - 70%
Scandinavia - 5%
Iberian Peninsula - 10%
Italian Peninsula - 4%
West Slavic - 4%
Magyar - 3%
Baltic- 2%
The Scandi I can easily chalk up to Northern European DNA. But I don't know what to do with the Iberian, Italian, Slavic (probably Polish/Czech?), Hungarian, or Baltic. None of this is accounted for on the known paper genealogy (which again, we only have about 5% or less missing in the past 7 generations). And none of the known surnames fit any of these ethnicities.
I'm wondering if the historical regions his ancestors are from in Germany play into this mix of DNA: largely Osnabruck (northwestern), across the Rhineland-Palatinate, and a bit from the German part of Switzerland. Given historical movements that happened centuries ago, maybe this DNA mix is not as unexpected as it feels but really just reflects typical migration patterns in Germany 500, 700, 1000, and 1500 years ago due to wars/famine/religion, etc, that because of admixture are still bleeding through 1500 years later?
I ran his DNA through a Chromosome painter and while there are some distinct larger chunks of these smaller ethnicities (Italian, Magyar, Baltic, etc), they are pretty broadly dispersed across his chromosomes. Does this support my working theory?
Lastly, if the working theory is correct, does that mean at a certain point a long time ago, we did have Hungarian, Italian, and Baltic ancestors that presumably moved into Germanic regions 500 or 1000 years ago and enough of it intermixed over and over again in these regions and my dad happened to get a larger share of it than "expected"?
Love to hear any theories! Thanks :)