My g25 results (eastern german)

[thatoneton]

It was:

https://de.wikipedia.org/wiki/Bavaria_Slavica

(In English with notably less information:https://en.wikipedia.org/wiki/Bavaria_Slavica)

Actually I knew of some people being there, but it seems they were more numerous than I thought. Still, if they were the minority, it's strange they would add up to 1/4 of the total genome of Franconians, namely people coming from an area clearly bigger than that inhabited by the Slavic people (who were not a majority where they lived).

[rothaer]

(...)
And of course it's not really recent Sweden & Denmark ancestry that you have, these are simply Northern German dna segments being read this way - these same dna segments are shared by people in the Sweden & Denmark cluster.

Exactly.

However, I'll reiterate again that Sweden & Denmark is totally normal for East German's to score, and in solid amounts. Rothaer would know even better than me about this as he has seen many, many East German AncestryDNA results, not the least of which is like 10 of his own family members

I do get 29% "Sweden & Denmark" and my more northwestern wife (fully from Western Mecklenburg) gets in sum 50% "Norway" and "Sweden & Denmark".

[rothaer]

Actually I knew of some people being there, but it seems they were more numerous than I thought. Still, if they were the minority, it's strange they would add up to 1/4 of the total genome of Franconians, namely people coming from an area clearly bigger than that inhabited by the Slavic people (who were not a majority where they lived).

I think they were just in minority in the whole of Franconia and in majority in Upper Franconia https://de.wikipedia.org/wiki/Oberfr...in_Bavaria.svg f. i.
You also had notable settlements in Oberpfalz which is outside of Franconia but still in Bavaria. https://de.wikipedia.org/wiki/Oberpf...in_Bavaria.svg The Franconian parts of Thuringia have shown by recent indigenous testees to be pretty Slavic. If you consider the whole of Franconia including all western parts it may also be just 1/5. Maybe even a little less but over 15%, I'd guess.

I admit that I did not have in mind the smaller Franconian part that is in Baden-Württemberg.

[thatoneton]

I think they were just in minority in the whole of Franconia and in majority in Upper Franconia https://de.wikipedia.org/wiki/Oberfr...in_Bavaria.svg f. i.
You also had notable settlements in Oberpfalz which is outside of Franconia but still in Bavaria. https://de.wikipedia.org/wiki/Oberpf...in_Bavaria.svg The Franconian parts of Thuringia have shown by recent indigenous testees to be pretty Slavic. If you consider the whole of Franconia including all western parts it may also be just 1/5. Maybe even a little less but over 15%, I'd guess.

I admit that I did not have in mind the smaller Franconian part that is in Baden-Württemberg.

Okay, thanks for your answer, it was informative.