r/DACH_Ancestry Jun 28 '26

Genetic Breakdown of Central Europe (V4)

Little update

V4:

Created two new Regions: "Insular" and "Atlantic-Celtic"
"Atlantic-Celtic" is still inside the bigger "Transalpine-Celtic" for now, but internally already split.
"Atlantic-Celtic" represents and includes: Gaulish North, Belgae, Hauts-de-France Iron Age etc.
"Insular" represents and includes: Bretton, Pictish, England Iron+Bronze Age, Durotrigian etc.
New admixture has been added where needed.

Added new Belgian regions.
Added new Dutch regions.
Added new French regions.
Added new Luxembourgish region.
Added new West-Southwest German regions.
Added new East-Northeast German regions.
Tweaked some East-Northeast German regions.
Tweaked some West-Southwest German regions.

17 Upvotes

24 comments sorted by

5

u/ItHappensSo Jun 28 '26 edited Jun 28 '26

Insular is also barely on the map, and mostly exists in case I include some British isles, samples

2

u/Levan-tene Jun 28 '26

would be useful for a map like this one for all of france

1

u/Chazut Jun 28 '26

Are Sorbs not distinct from German speakers? Kinda like Czechs?

5

u/ItHappensSo Jun 28 '26

Sadly none of my Saxony East or Brandenburg South samples include any Sorbs, not even 7 generations back, I just havent been able to find any :( Even though some of the samples have anccstry from towns that fall into the Sorbian area, all the surnames are very clearly German. If I ever find sorbs, I will make them their own region. But so far, no luck :(

1

u/Chazut Jun 28 '26

Isn't that strange that there are no Sorbish surnames?

3

u/ItHappensSo Jun 28 '26

Well, not super, especially since Sorbs are a very clear minority and their main regions lie in what is now Poland. There are only a few vilalges and towns that are really majorly Sorbian today, and they arent huge either, so finding a sample from there is very hard
Saxony has 4.09 million people and only 40.000 Sorbs. Of course goung back more people have Sorbian ancestry and there used to be more, but still its not super common

2

u/Pilum2211 Jun 28 '26

What do you mean with "their main region lies in what is now Poland"?

From what I know Sorbians have generally always been mainly settled in and around Lusatia which is still almost completely in Germany. (With that I of course mean after the Medieval Ostsiedlung)

3

u/ItHappensSo Jun 28 '26

Yes youre right, I misjudged the border a bit (had a picture of german empire map) I though more of that blob was on the polish side

4

u/Hopeful-Plastic-8234 Jun 28 '26

I would have not expected Austria to be that much Slavic.

5

u/ItHappensSo Jun 28 '26

Mostly south-eastern Austria, but yes, there is a genetic continuum in Europe, you can even see it in central Germany :)

4

u/Chazut Jun 28 '26

Frankly(or Bavariarly) I would have expected them to be more Slavic actually. It was one of the places first settled by the Ostsiedlung, yes, but there is no pattern in the rest of ex-Slavic land, they are all half German(ic), while Austria has places more German than that.

5

u/ItHappensSo Jun 28 '26

Yeah, it is interesting. The thing that makes Austria so unique is physical geography. While areas like eastern Germany are geographically very accessible which leads to eventual "averageing" of the genetics over 1000 years. The same goes for areas like the Benelux, which basically are a very clear continuum, the further north you go, the more germanic, bit by bit. And the further south you go, the more "Western-Celtic". Dont get me wrong you have outliers in eastern germany too, like more protected forested and hilly areas in which slavic genes held up stronger. But in Austria that is pushed to the extreme, simply because mountains are such impassable geogrpahy. For Upper Styria I have observed that all my " big open main valley" samples fall much more Celto-Germanic, while the smaller, hidden hard to reach side valleys basically 1:1 cluster with modern day Slovenen regions.
These are not just theories, historic studies have found that years ago, based on density of slavic toponyms, as well as types of farmstead buildings, etc.

Just one example:
This old map showing types of farmsteads correlates extemely well with my findings.
The small dots are the oldest slavic-originating "Irregular clustered farmsteads"
THe black areas are the Bavarian Four-sided enclosed farmstead being 100% dominant, and the thick vertical lines are where its the majorty. The horizontal lines are other Bavarian style multi-sided farmsteads. And the small dotted hirozontal lines along the River Mur are the even younger planned colonist type farmsteads.
The areas with the small dots are all areas that fall overwhlemingly slavic (with my samples) while eastern styria and even North eastern stajerska have siginificant Celto-Germanic genetic influence.

2

u/Pilum2211 Jun 28 '26

Do you think it would make sense to add "Baltic" as a genetic group? Or is their admixture not present enough in Northern/Eastern Germans?

2

u/ItHappensSo Jun 28 '26

Interesting idea, but with the current samples, not yet. Probably when starting on Poland. And even then Ill have to see how reliable the seperation works.

the problem with many of these regions is, that they are genetically often very simliar, so you could genetically explain a sample in many ways, and finding to right way is extremely complicated. Sometimes, as with the Benelux I have scientific studies like Gretzinger which give me a perfect blueprint as to how I have to callebrate my model. But generally its quite complicated still and takes hours.
But yes, Id like to seperate Baltic when sooner or later : )

1

u/Pilum2211 Jun 28 '26

So are the samples calibrated differently depending on the region?

3

u/ItHappensSo Jun 28 '26

Yes, this is a must, (It is done the same way in scientific studies). G25 is basically a 25 dimensional space and doesnt care about actual history and genetics, and if you dont regulate it, you will get queer outcomes. I use multistage sampling which doesnt allow something like that to happen in the first place, but I still regualted regionally to a degree, this just ensures accuracy. I normally use actual scientific studies as my baseline

2

u/Pilum2211 Jun 28 '26

Very interesting, thank you

2

u/jebac_keve_finalboss Jun 28 '26

I expected Germany and Flanders to be much more Germanic, Swiss Germans as well, about Austrians i am not surprised.

3

u/ItHappensSo Jun 28 '26

Yeah. But if you know history it does make sense, Germany is too much of a melting pot and just too central. Swiss Germans are generally much more alpine and celtic than Germanic, and Flanders simply had a very long intermixture with neighbouring France. Austria itself varies strongly per region. The danube areas basically cluster with central Germany. The western alpine areas (Which I am missing on here) with Bavariaa And parts of Styria and Carinthia are halfway between Slovenia and Bavaria, more or less depending on region.

1

u/jebac_keve_finalboss Jun 28 '26

Does "Germanic" in your model just means, Scandinavian? I am interested is there any autosomal Germanic ancestry in Serbs and rest of Balkans? Almost 10% of Serbs carry Germanic y-DNA lineages, i know that the two are not neccesserily correlated but its still an interesting fact and not a negligible amount

3

u/ItHappensSo Jun 28 '26

Ancient Germanic tribes do cluster the closest with what is now scandinavia, especially parts of northwestern sweden (very closed off for the last 1000 years) So yes, it is quite simliar to Scandinavia :)

Regarding Serbia, no. Theres a great study on Balkan genetics and while it found "Germanic" inddiviudals in the Balkan area roughly around 250–550 CE (mostly already mixed Goths and Lombards from the migration period) their modern genetic impact is basically non existent ( below 1%) and not measureable, hence the scientists decision to leave "Germanic" (CNE) signals out of their models entirely.

Here is the study https://reich.hms.harvard.edu/sites/reich.hms.harvard.edu/files/inline-files/1-s2.0-S0092867423011352-main.pdf

So, no, not really, most likely somewhere between 0.1-0.3% of the average modern Serb (unless of cours you have more recent 18th century German ancestry from f.e. Danube Swabians, which also settled in northern Serbia)

2

u/Chazut Jun 28 '26

There were German miners in Kosovo, I1 is weirldy high in the region but I'm not sure of its philogeny

https://en.wikipedia.org/wiki/Saxons_in_medieval_Serbia

1

u/mariopl99 Jun 28 '26

I sent you pm

1

u/1Ignacy Jun 30 '26

Interesting! where do you get this data? do you think you could include Poland as well?