Genetic study Genetic history of Rus'

[Tautalus]

Abstract​

The foundation of the first ancient Rus′ state occurred as a result of the consolidation of diverse communities inhabiting Eastern Europe during the second half of the first millennium CE. Historical sources imply that these communities mostly include East Slavs, whose settlement across a vast territory led to the emergence of the East Slavic/Rus′ culture within the Rus′ state. We generated genomic data for 200 medieval individuals from different locations to elucidate the origin and genetic structure of the Rus′ population during the early stages of the state formation. Our findings reveal a genetic continuum predominantly shaped by two key genetic groups: a broad Slavic-related continuity of different genetic subclusters of Rus′ occupying the enormous European Plain area, and a Fenno-Ugrian (Uralic)-related component in the Northern Rus′ region. Importantly, both groups have a shared genetic substrate inherited from preceding ancient Baltic region populations. To scale Scandinavian ("Viking") heritage, we traced minor Scandinavian genetic lineages that did not make up the dominating genetic stratum of the early Rus′ state. Our study presents the first comprehensive genomic image of the medieval Rus′, highlighting the intricate cultural and genetic interactions between Slavic, Fenno-Ugrian, and other groups that formed the first Rus′ state affecting Europe's history.
​

https://www.biorxiv.org/content/10.64898/2025.12.30.695215v1

PCA

Admixture

 

[Vitruvius]

Abstract​

The foundation of the first ancient Rus′ state occurred as a result of the consolidation of diverse communities inhabiting Eastern Europe during the second half of the first millennium CE. Historical sources imply that these communities mostly include East Slavs, whose settlement across a vast territory led to the emergence of the East Slavic/Rus′ culture within the Rus′ state. We generated genomic data for 200 medieval individuals from different locations to elucidate the origin and genetic structure of the Rus′ population during the early stages of the state formation. Our findings reveal a genetic continuum predominantly shaped by two key genetic groups: a broad Slavic-related continuity of different genetic subclusters of Rus′ occupying the enormous European Plain area, and a Fenno-Ugrian (Uralic)-related component in the Northern Rus′ region. Importantly, both groups have a shared genetic substrate inherited from preceding ancient Baltic region populations. To scale Scandinavian ("Viking") heritage, we traced minor Scandinavian genetic lineages that did not make up the dominating genetic stratum of the early Rus′ state. Our study presents the first comprehensive genomic image of the medieval Rus′, highlighting the intricate cultural and genetic interactions between Slavic, Fenno-Ugrian, and other groups that formed the first Rus′ state affecting Europe's history.
​

PCA

Admixture

Great study with lots of sampling. This gives us a great deal of information on the background of the first Slavs - particularly Russians and Ukrainians. I do disagree with some of the abstract as no samples from 700AD onward should be classified as "Ancient" in my opinion since we are well into the middle ages at this point.

As the study shows it appears the North/South cline in Russia is historic. It also looks like Nganasan related ancestry was a bit higher in 700-1600AD Russia than today for both the "Major" and "North" clusters. EEF ancestry instead seems to have taken its place which implies some admixture with european populations broadly from a west and/or southerly direction that lacked said Nganasan related ancestry. The diversity between the aDNA samples also appears to be enormous, covering about 3/4ths of the modern continental europe PCA, despite the fact that the samples only come from modern Russia, Ukraine and Latvia.

 

[Tautalus]

There has long been a political and academic divide over how much Scandinavians contributed to the origins of the Rus’ state.
One position is that the development of Kievan Rus' was influenced by non-Slavic Varangians, the "Normanism theory", the other is that the people of Kievan Rus' emerged solely from autochthonous Slavic political development, the "anti-Normanism theory", it emphasizes Slavic autonomy and downplays Scandinavian influence.
This study shows that Scandinavian genetic contribution to the medieval Rus’ samples is very low overall, most of the genetic ancestry in the studied individuals comes from Finno-Ugric, Slavic, local Baltic substrates, with only minor Scandinavian influence on a limited number of individuals.
These genetic findings, which shows Slavic continuity and low genetic impact of Scandinavian newcomers, conveniently aligns with anti-Normanism narratives. And it will undoubtedly be exploited by anti-Normanism Russian historians.
But I don't think that invalidates the Normanism theory that is mainstream today.
The Viking/Varangian influence did indeed exist. There is a scholarly consensus on this, at least in the West. It appears as a minor admixture component in some samples rather than dominant ancestry, because migrating Norse were few in number compare to local populations. They were a small elite, but they left a much greater political legacy than a genetic one.​

 

[traveller]

The authors were focused on sites with Rus (as they called it, actually Slavic) and Fenno-Ugrian culture, while Scandinavian relations and influence was only mentioned in passing. At the same time, it was expressly mentioned that a burial of Druzhina elite soldiers were Slavs.

Contrast that to the Margaryan Viking paper that covered 7 Viking culture sites across Russia and Ukraine.

The coverage of each site for both studies is only a few specimens, though.

 

[Tautalus]

There is a Eupedia thread about the paper Traveller is referring to, it can be found here. The paper can be found here.

 

[Vitruvius]

There has long been a political and academic divide over how much Scandinavians contributed to the origins of the Rus’ state.
One position is that the development of Kievan Rus' was influenced by non-Slavic Varangians, the "Normanism theory", the other is that the people of Kievan Rus' emerged solely from autochthonous Slavic political development, the "anti-Normanism theory", it emphasizes Slavic autonomy and downplays Scandinavian influence.
This study shows that Scandinavian genetic contribution to the medieval Rus’ samples is very low overall, most of the genetic ancestry in the studied individuals comes from Finno-Ugric, Slavic, local Baltic substrates, with only minor Scandinavian influence on a limited number of individuals.
These genetic findings, which shows Slavic continuity and low genetic impact of Scandinavian newcomers, conveniently aligns with anti-Normanism narratives. And it will undoubtedly be exploited by anti-Normanism Russian historians.
But I don't think that invalidates the Normanism theory that is mainstream today.
The Viking/Varangian influence did indeed exist. There is a scholarly consensus on this, at least in the West. It appears as a minor admixture component in some samples rather than dominant ancestry, because migrating Norse were few in number compare to local populations. They were a small elite, but they left a much greater political legacy than a genetic one.​

I think if widespread sampling supports the so called "Anti-Normanism theory" then it is only just that we give more credit to it. This seems really a common phenomenon in all states which were ruled at one point by nordic/germanic populations but yet still failed to adopt their language. The foreign elites conformed to and were absorbed by the far more numerous locals, not so much the inverse.

Interestingly only one sample plots over the Norwegian/Icelandic part of the PCA.

 

[Tautalus]

​

I think if widespread sampling supports the so called "Anti-Normanism theory" then it is only just that we give more credit to it. This seems really a common phenomenon in all states which were ruled at one point by nordic/germanic populations but yet still failed to adopt their language. The foreign elites conformed to and were absorbed by the far more numerous locals, not so much the inverse.

Interestingly only one sample plots over the Norwegian/Icelandic part of the PCA.

I agree with you regarding the absortion of those foreign elites, but I don’t give more credit to the "Anti-Normanism theory" because of the widespread sampling seems to support it. It does not refute the “Normanism theory” model, which never required mass migration in the first place.
Genetics is not a good indicator of a state's political or institutional origins. Small, mobile elites can found dynasties, control trade routes, introduce political structures, or provide a ruling lineage without leaving a large genetic footprint.
This phenomenon occurred in many regions, such as among the Lombards in Italy or the Visigoths in Iberia.
The Visigoths migrated as a people, while Varangians were more of a mobile warrior/mercantile elite, but the difference does not affect the pattern. In all these cases there is historically consequential elite dominance, but without demographic replacement, a disproportionate political impact relative to the low genetic impact.
The Visigoths in Spain established a kingdom, legal codes, and ruling institutions, yet Iberian genetics show overwhelmingly local continuity with only a small, localised Germanic admixture, quickly absorbed. A group does not need to be genetically dominant to be historically important.​

 

[Vitruvius]

I agree with you regarding the absortion of those foreign elites, but I don’t give more credit to the "Anti-Normanism theory" because of the widespread sampling seems to support it. It does not refute the “Normanism theory” model, which never required mass migration in the first place.
Genetics is not a good indicator of a state's political or institutional origins. Small, mobile elites can found dynasties, control trade routes, introduce political structures, or provide a ruling lineage without leaving a large genetic footprint.
This phenomenon occurred in many regions, such as among the Lombards in Italy or the Visigoths in Iberia.
The Visigoths migrated as a people, while Varangians were more of a mobile warrior/mercantile elite, but the difference does not affect the pattern. In all these cases there is historically consequential elite dominance, but without demographic replacement, a disproportionate political impact relative to the low genetic impact.
The Visigoths in Spain established a kingdom, legal codes, and ruling institutions, yet Iberian genetics show overwhelmingly local continuity with only a small, localised Germanic admixture, quickly absorbed. A group does not need to be genetically dominant to be historically important.​

This depends entirely how both theories are qualified and to be honest, like most ethno-political debates, it's unlikely a binary choice, but a gradient plethora of views complete with their own nuance. If nothing else the study strongly indicates that Nordic input was nearly totally absent during this broad time frame and we seem to agree on this. I don't think there's anything wrong with giving credence to the Anti-Normanist leaning idea that Viking genetic input to the Kievan Rus was nonexistant or extraordinarily low. That's the only data point I'm referring to. I'm not saying that it gives credence to anything outside of this, including quantifying what political effect they had.

 

[Tautalus]

To clarify my point of view, the anti-Normanism theory is not, at its core, a genetic theory, it is a political and historiographical one. Genetics cannot validate or invalidate it as a whole. What genetic evidence can do is address a single specific question: whether Scandinavians contributed substantially to the population of Kievan Rus’.
On that specific point, the study indicates that Scandinavian genetic input during the relevant time frame was nonexistent or extraordinarily low. Acknowledging this does not mean endorsing anti-Normanism as a political or historical framework. It simply means accepting the demographic conclusion the data support.
In other words, the findings do not support anti-Normanism in a broad sense, they constrain demographic interpretations by ruling out significant Scandinavian settlement. Questions about political influence, state formation, institutions remain outside the scope of genetics and must be answered by history and archaeology.​