Why do Scottish people overlap so often with Dutch genetics?

[Athalafuns]

Not all of the Netherlands, but a large portion. I have seen it frequently.

[Tooting Carmen]

Their NW European heritage and geography?

[Ibericus]

Because they descend from a common source of ancestry (the Bell Beakers, basically )

[Albannach]

As Ibericcus says, we descend mainly from Dutch Bell-Beaker and we lack the French IA component that the English and Welsh have, we have also had significant immigration from Flemish settlers over the centuries, particularly in the east which is often understated and overlooked.

Scotland and the Flemish People
https://flemish.wp.st-andrews.ac.uk/

[JerryS.]

Because the North Sea has a lot of overlapping populations.

[Roy]

Interesting as I find Dutch and Scottish quite different looking, but there's obviously a lot of overlap as well.

[ScandinavianCelt]

Boats.

[J. Ketch]

Practically every nation in Northwestern Europe overlaps genetically if you look at PCAs, and the Dutch especially; they are the crossroads of the Northwest.

[ecptr]

Practically every nation in Northwestern Europe overlaps genetically if you look at PCAs, and the Dutch especially; they are the crossroads of the Northwest.

Is there a highly specific Scottish-Dutch connection?

[J. Ketch]

Is there a highly specific Scottish-Dutch connection?
Beyond Calvinism not really. But there is seemingly a bit of a specific connection between the North Dutch and Scottish/Irish in calculators due to the residual Bell Beaker ancestry above the Rhine.

[ScandinavianCelt]

Is there a highly specific Scottish-Dutch connection?

Frisian Vikings.

Here's how they match with vikings.

Distance to: Scottish
0.01134716 Iceland_Early-High_Medieval_Viking_Age_Hofstadir
0.01675878 Scotland_Orkney_Early_Medieval_Viking_Age_(Insular _Celtic_Profile)
0.01689630 Iceland_Early_Medieval_Viking_Age_(Mixed_Gaelic-Norse_Profile)
0.01741459 Norway_North_Early_Medieval_Viking_Age_(Insular_Ce ltic_Profile)
0.01747157 Denmark_Early_Medieval_Viking_Age_Langeland_(Mixed _Northern_Euro_Profile)
0.01803019 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(M ixed_Northern_Euro_Profile)
0.01864577 Sweden_Early_Medieval_Viking_Age_Gotland_(Mixed_No rse-Insular_Celtic_Profile)_(low_res)
0.01872067 Denmark_Early_Medieval_Viking_Age_Langeland_(Conti nental_Northern_Euro_Profile)
0.01884386 Sweden_High_Medieval_Viking_Age_Jamtland_(Mixed_No rthern_Euro_Profile)
0.01894121 Greenland_Early-High_Medieval_Viking_Age_Eastern_Settlement_(Early _Norse)_(Mixed_Gaelic-Norse_Profile)
0.01905678 Sweden_Early-High_Medieval_Viking_Age_Skara_(Norse_Profile)
0.01913557 Sweden_Early_Medieval_Viking_Age_Gotland_(Continen tal_Northern_Euro_Profile)
0.01946891 Scotland_Orkney_Early_Medieval_Viking_Age_(Mixed_I nsular_Celtic-Norse_Profile)
0.02011600 Sweden_Early-High_Medieval_Viking_Age_Skara_(Mixed_Northern_Eur o_Profile)
0.02075706 Denmark_Early_Medieval_Viking_Age_Langeland_(Norse _Profile)
0.02096539 Denmark_Early_Medieval_Viking_Age_Zealand_(Mixed_N orthern_Euro_Profile)
0.02109006 England_Early_Medieval_Viking_Age_Oxford_(Mixed_No rthern_Euro_Profile)
0.02130193 Ireland_Early_Medieval_Viking_Age_Dublin_(Insular_ Celtic_Profile)
0.02199489 Sweden_Early-High_Medieval_Viking_Age_Skara_(Continental_Northe rn_Euro_Profile)
0.02212524 Denmark_Early_Medieval_Viking_Age_Jutland_(Mixed_N orthern_Euro_Profile)
0.02264876 Sweden_Early_Medieval_Viking_Age_Sala_(Insular_Cel tic_Profile)
0.02301290 Sweden_Early-High_Medieval_Viking_Age_Skara_(Mixed_Western_Euro _Profile)
0.02331664 Sweden_Early-High_Medieval_Viking_Age_Sigtuna_(Mixed_Northern_E uro_Profile)
0.02343762 Sweden_Early_Medieval_Viking_Age_Gotland_(Mixed_No rse-Insular_Celtic_Profile)
0.02415082 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(N orse_Profile)

Distance to: Frisian_Netherlands
0.01092545 Sweden_Early-High_Medieval_Viking_Age_Skara_(Norse_Profile)
0.01190163 Sweden_Early_Medieval_Viking_Age_Gotland_(Continen tal_Northern_Euro_Profile)
0.01199418 Denmark_Early_Medieval_Viking_Age_Langeland_(Norse _Profile)
0.01202320 Iceland_Early-High_Medieval_Viking_Age_Hofstadir
0.01477912 Denmark_Early_Medieval_Viking_Age_Langeland_(Conti nental_Northern_Euro_Profile)
0.01544629 Denmark_Early_Medieval_Viking_Age_Funen_(Norse_Pro file)
0.01580409 Iceland_Early_Medieval_Viking_Age_(Mixed_Gaelic-Norse_Profile)
0.01644918 Scotland_Orkney_Early_Medieval_Viking_Age_(Mixed_I nsular_Celtic-Norse_Profile)
0.01722414 England_Early_Medieval_Viking_Age_Oxford_(Norse_Pr ofile)
0.01766201 Sweden_Early-High_Medieval_Viking_Age_Skara_(Continental_Northe rn_Euro_Profile)
0.01793040 Greenland_Early-High_Medieval_Viking_Age_Eastern_Settlement_(Early _Norse)_(Mixed_Gaelic-Norse_Profile)
0.01860207 Norway_South_Early_Medieval_Viking_Age_(Norse_Prof ile)
0.01864797 Norway_North_Early_Medieval_Viking_Age_(Insular_Ce ltic_Profile)
0.01896897 Denmark_Early_Medieval_Viking_Age_Zealand_(Norse_P rofile)
0.01943373 Denmark_Early_Medieval_Viking_Age_Zealand_(Mixed_N orthern_Euro_Profile)
0.01948540 Denmark_Early_Medieval_Viking_Age_Langeland_(Mixed _Norse-Balto-Slavic_Profile)
0.01972544 Sweden_High_Medieval_Viking_Age_Jamtland_(Mixed_No rthern_Euro_Profile)
0.02061487 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(N orse_Profile)
0.02079756 Denmark_Early_Medieval_Viking_Age_Zealand_(Contine ntal_Northern_Euro_Profile)
0.02089771 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(M ixed_Northern_Euro_Profile)
0.02096760 Sweden_Early_Medieval_Viking_Age_Gotland_(Mixed_No rse-Insular_Celtic_Profile)_(low_res)
0.02099678 Russia_Early-High_Medieval_Viking_Age_Ladoga_(Norse_Profile)
0.02210433 England_Early_Medieval_Viking_Age_Oxford_(Mixed_No rthern_Euro_Profile)
0.02230974 Sweden_Early-High_Medieval_Viking_Age_Sigtuna_(Norse_Profile)
0.02231580 Norway_North_Early_Medieval_Viking_Age_(Mixed_Nors e-Insular_Celtic_Profile)


I'd blame the Icelandic vikings, but any of the early vikings from Sweden or Iceland probably mixed all those genetics up there in the North Sea.

[Athalafuns]

Frisian Vikings.

Here's how they match with vikings.

Distance to: Scottish
0.01134716 Iceland_Early-High_Medieval_Viking_Age_Hofstadir
0.01675878 Scotland_Orkney_Early_Medieval_Viking_Age_(Insular _Celtic_Profile)
0.01689630 Iceland_Early_Medieval_Viking_Age_(Mixed_Gaelic-Norse_Profile)
0.01741459 Norway_North_Early_Medieval_Viking_Age_(Insular_Ce ltic_Profile)
0.01747157 Denmark_Early_Medieval_Viking_Age_Langeland_(Mixed _Northern_Euro_Profile)
0.01803019 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(M ixed_Northern_Euro_Profile)
0.01864577 Sweden_Early_Medieval_Viking_Age_Gotland_(Mixed_No rse-Insular_Celtic_Profile)_(low_res)
0.01872067 Denmark_Early_Medieval_Viking_Age_Langeland_(Conti nental_Northern_Euro_Profile)
0.01884386 Sweden_High_Medieval_Viking_Age_Jamtland_(Mixed_No rthern_Euro_Profile)
0.01894121 Greenland_Early-High_Medieval_Viking_Age_Eastern_Settlement_(Early _Norse)_(Mixed_Gaelic-Norse_Profile)
0.01905678 Sweden_Early-High_Medieval_Viking_Age_Skara_(Norse_Profile)
0.01913557 Sweden_Early_Medieval_Viking_Age_Gotland_(Continen tal_Northern_Euro_Profile)
0.01946891 Scotland_Orkney_Early_Medieval_Viking_Age_(Mixed_I nsular_Celtic-Norse_Profile)
0.02011600 Sweden_Early-High_Medieval_Viking_Age_Skara_(Mixed_Northern_Eur o_Profile)
0.02075706 Denmark_Early_Medieval_Viking_Age_Langeland_(Norse _Profile)
0.02096539 Denmark_Early_Medieval_Viking_Age_Zealand_(Mixed_N orthern_Euro_Profile)
0.02109006 England_Early_Medieval_Viking_Age_Oxford_(Mixed_No rthern_Euro_Profile)
0.02130193 Ireland_Early_Medieval_Viking_Age_Dublin_(Insular_ Celtic_Profile)
0.02199489 Sweden_Early-High_Medieval_Viking_Age_Skara_(Continental_Northe rn_Euro_Profile)
0.02212524 Denmark_Early_Medieval_Viking_Age_Jutland_(Mixed_N orthern_Euro_Profile)
0.02264876 Sweden_Early_Medieval_Viking_Age_Sala_(Insular_Cel tic_Profile)
0.02301290 Sweden_Early-High_Medieval_Viking_Age_Skara_(Mixed_Western_Euro _Profile)
0.02331664 Sweden_Early-High_Medieval_Viking_Age_Sigtuna_(Mixed_Northern_E uro_Profile)
0.02343762 Sweden_Early_Medieval_Viking_Age_Gotland_(Mixed_No rse-Insular_Celtic_Profile)
0.02415082 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(N orse_Profile)

Distance to: Frisian_Netherlands
0.01092545 Sweden_Early-High_Medieval_Viking_Age_Skara_(Norse_Profile)
0.01190163 Sweden_Early_Medieval_Viking_Age_Gotland_(Continen tal_Northern_Euro_Profile)
0.01199418 Denmark_Early_Medieval_Viking_Age_Langeland_(Norse _Profile)
0.01202320 Iceland_Early-High_Medieval_Viking_Age_Hofstadir
0.01477912 Denmark_Early_Medieval_Viking_Age_Langeland_(Conti nental_Northern_Euro_Profile)
0.01544629 Denmark_Early_Medieval_Viking_Age_Funen_(Norse_Pro file)
0.01580409 Iceland_Early_Medieval_Viking_Age_(Mixed_Gaelic-Norse_Profile)
0.01644918 Scotland_Orkney_Early_Medieval_Viking_Age_(Mixed_I nsular_Celtic-Norse_Profile)
0.01722414 England_Early_Medieval_Viking_Age_Oxford_(Norse_Pr ofile)
0.01766201 Sweden_Early-High_Medieval_Viking_Age_Skara_(Continental_Northe rn_Euro_Profile)
0.01793040 Greenland_Early-High_Medieval_Viking_Age_Eastern_Settlement_(Early _Norse)_(Mixed_Gaelic-Norse_Profile)
0.01860207 Norway_South_Early_Medieval_Viking_Age_(Norse_Prof ile)
0.01864797 Norway_North_Early_Medieval_Viking_Age_(Insular_Ce ltic_Profile)
0.01896897 Denmark_Early_Medieval_Viking_Age_Zealand_(Norse_P rofile)
0.01943373 Denmark_Early_Medieval_Viking_Age_Zealand_(Mixed_N orthern_Euro_Profile)
0.01948540 Denmark_Early_Medieval_Viking_Age_Langeland_(Mixed _Norse-Balto-Slavic_Profile)
0.01972544 Sweden_High_Medieval_Viking_Age_Jamtland_(Mixed_No rthern_Euro_Profile)
0.02061487 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(N orse_Profile)
0.02079756 Denmark_Early_Medieval_Viking_Age_Zealand_(Contine ntal_Northern_Euro_Profile)
0.02089771 England_Early_Medieval_Viking_Age_Ridgeway_Hill_(M ixed_Northern_Euro_Profile)
0.02096760 Sweden_Early_Medieval_Viking_Age_Gotland_(Mixed_No rse-Insular_Celtic_Profile)_(low_res)
0.02099678 Russia_Early-High_Medieval_Viking_Age_Ladoga_(Norse_Profile)
0.02210433 England_Early_Medieval_Viking_Age_Oxford_(Mixed_No rthern_Euro_Profile)
0.02230974 Sweden_Early-High_Medieval_Viking_Age_Sigtuna_(Norse_Profile)
0.02231580 Norway_North_Early_Medieval_Viking_Age_(Mixed_Nors e-Insular_Celtic_Profile)


I'd blame the Icelandic vikings, but any of the early vikings from Sweden or Iceland probably mixed all those genetics up there in the North Sea.
What I'm about to say doesn't have much to do with the thread, but on PCA I'm at exactly the same point as VK286, perfect overlap. Not near, but right above that sample:
127745

[ScandinavianCelt]

What I'm about to say doesn't have much to do with the thread, but on PCA I'm at exactly the same point as VK286, perfect overlap. Not near, but right above that sample:
127745

Those Danish Vikings were looking for Spanish girls. I wonder how many different Danish lineages exist in Spain as a result?