R-Z8052 (Y-DNA)

R-FGC3861 (= R-Z8052) is a subclade of the Y-DNA haplogroup R1b-U106.

R1b-U106 > Z2265 > BY30097 > FTT8 > FGC3861

If your terminal SNP (haplogroup) is R-FGC3861 or downstream, please join the FTDNA project R1b-U106:
☛ https://www.familytreedna.com/groups/u106

R1b-U106 on Eupedia site: https://www.eupedia.com/europe/Haplogroup_R1b_Y-DNA.shtml#S21-U106

All mens who have tested positive for FGC3861 share a common paternal ancestor living at the end of 3rd century BC, during late Chalcolithic (Copper age, late Neolithic).

R-FGC3861 haplotrees

Yfull: https://www.yfull.com/tree/R-FGC3861/

Ytree (Alex Williamson): https://www.ytree.net/DisplayTree.php?blockID=1373

FTDNA public haplotree:
https://www.familytreedna.com/public/y-dna-haplotree/R;name=R-FGC3861

FTDNA Discover tree:
https://discover.familytreedna.com/y-dna/R-FGC3861/tree

SNP Tree Explorer:
http://scaledinnovation.com/gg/treeExplorer.html?snp=R-FGC3861

R-FGC3861 subclades that arose during Chalcolithic and Bronze age

• R-FGC3861 (TMRCA 2200 BC)
  • R-Z8053 (TMRCA 2100 BC); 1 aDNA in Denmark, 16-17th c. AD.
    • R-S1855 / Y2404 (TMRCA 1800 BC); 2 aDNA: 1 in Denmark, 9th c. AD, and 1 in Frisia, Nederlands, 9-10th c. AD.
      • R-FGC17471 (TMRCA 1750 BC); 1 aDNA in Poland (Gothic), 2nd-3rd c. AD.
        • R-FGC17465 (TMRCA 1500 BC); living descendants with origin in British Isles, Germany, Scandinavia and France (Normandy, Guernsey and Sicily); 2 aDNA: 1 in Flanders, Belgium, 6-7th c. AD, and 1 in Denmark, 14th c. AD.
          • R-FGC68720 (TMRCA 900 BC); 1 aDNA in Hungary, 10th c. AD.
      • R-S1859 (TMRCA 1150 BC); living descendants with origin in British Isles and Sweden.
    • R-BY66889 (TMRCA 900 BC); living descendants with origin in British Isles and North of Spain.
  • R-A1243 (TMRCA 850 ybp); living descendants with origin in British Isles, Germany, Poland, Russia and France.
  • R-FGC14877 (TMRCA 750 BC); living descendants with origin in British Isles, Germany and Denmark; 1 aDNA in Denmark, 14th c. AD.

Note: aDNA = ancient Y-DNA / number of individuals found in ancient burials tested positive for the subclade.

Best-guess origins of R-FGC3861

Likely MRCA data range: 2400-1600 BC.

Likely origin: central or western Europe?

Culture: Corded Ware Culture, possibly specifically Single Grave Culture (if closer to 2400 BC) or its western or central European descendants.

Narrative evidence: R-FGC3861 is fairly evenly spread across Europe, tracing approximately the same distribution as the R-U106 average. This probably means it shares a common culture with the bulk of R-U106 during its early years. It's sub-clades show a more diverse pattern.
R-A1243 is strong in eastern Europe.
R-FGC14877 is focussed towards Germany.
R-Z8053 is strong in Scandinavia, Britain, France and probably the western Meditteranean.
There is not enough data to easily tell when the major geographical splits were.

Source (January 2022): https://groups.io/g/R1b-U106/message/5759

Although this remains to be confirmed by further data, the current distribution of R-FGC3861 subclades and the ancient DNA found in almost exclusively Germanic cultures suggest that the majority of R-FGC3861 descendants have remained relatively clustered since the Bronze Age to the end of the Iron Age, in a region near the North Sea and the Baltic, probably centered on Denmark or neighboring regions in Germany.
The dispersal of most of these lineages in the British islands and in Western Europe seems to have only started with the migrations of Germanic peoples.
The cultures in which the different lineages of R-FGC3861 developped before this dispersal could be those of Single Grave culture, Bell Beaker culture, Unetice culture, Tumulus Culture, Nordic Bronze Age, Nordwestblock and finally Scandinavian Iron Age and Jastorf Culture.

Ancient Y-DNA (aDNA) belonging to R-FGC3861

Some ancient Y-DNA belonging to R-FGC3861, or to one of its subclades, have been discovered in central northern Europe, in an area extending from Belgium to Poland, and from Denmark to northern Hungary. With the exception of the Hungarian individual, all these aDNA belong to Germanic cultures, from late antiquity to early modern period following the Middle Ages: Gothic, Frankish, Viking, Frisian and Danish.

• Pruszcz Gdański 479 (100 - 300 CE), Late Iron Age, Wielbark culture (Gothic), Pomerania, Poland (PCA0479 from Stolarek et al. 2023). Subclade: R-FGC3861>Z8053>S1855>FGC17471
• Koksijde S94 (500 - 750 CE), Medieval Age, Merovingian Kingdom, Koksijde, Flanders, Belgium (KOS015 from Larmuseau et al. 2022). Subclade: R-FGC3861>Z8053>S1855>FGC17471>FGC17465
• Bodkergarden VK289 (800 - 900 CE), Medieval Age, Danish Viking, Langeland, Denmark (VK289 from Margaryan et al. 2020). Subclade: R-FGC3861>Z8053>S1855 (FGC3880)
• Groningen 12 (855 - 960 CE), Medieval Age, Medieval Netherlands, Groningen, Netherlands (GRO012 from Gretzinger et al. 2022). Subclade: R-FGC3861>Z8053>S1855
• Nagytarcsa 19 (900 - 1000 CE), Medieval Age, Medieval Hungarian, Homokbánya, Nagytarcsa, Hungary (NTH-19 from Maróti et al. 2022). Subclade: R-FGC3861>Z8053>S1855>FGC17471>FGC17465>FGC68720>FT153449
• Holbaek MHO71 (1300 - 1350 CE), Medieval Age, Medieval Danish, Ahlgade 15-17, Holbaek, Denmark (CGG101864 from Barrie et al. 2024). Subclade: R-FGC3861>Z8053>S1855>FGC17471>FGC17465
• Randers KHM0899 (1300 - 1350 CE), Medieval Age, Medieval Danish, Tjaerby, Randers, Denmark (CGG100751 from Barrie et al. 2024). Subclade: R-FGC3861>FGC14877>FT28260>FT27983>FGC21340>A563>A564
• Denmark Historical 3 (1650 - 1850 CE), early modern period of Denmark, Holmens Kirke Churchyard, Copenhagen, Denmark. (Hansen_H3 from Hansen et al. 2017; Margaryan et al. 2018). Subclade: R-FGC3861>Z8053>FT399057

Sources:
https://docs.google.com/spreadsheets/d/1rpJP0Bt4qUQb9wWBFA7i1tLPV75...
https://discover.familytreedna.com/y-dna/R-FGC3861/ancient