CGG020723
England_Gloucestershire_Roman_IA
Sample Information
CGG020723
CGG020723
England_Gloucestershire_Roman_IA
171 AD
M
United Kingdom
England
Randwick_Long_Barrow (England, Gloucestershire); Randwick_Long_Barrow,Gloucestershire; Randwick Long Barrow; Stroud
Haplogroups
R1b1a1b1a1a1
T2b
22 calBCE - 200 calCE (1861±111 BP, UBA-40118)
Ancestry Components
Estimated ancestral proportions from ancient reference populationsPublication
mccoll2024; McColl et al. 2024 (bioRxiv); McCollWillerslevBioRxiv2025
G25 Coordinates
Download the G25 scaled coordinates for this sample to use in calculators like GEDmatch, Vahaduo, or our own calculators.
Download G25 (.txt)G25 Ancestry Model Cached
Very Poor · Distance: 0.0533
Model based on Davidski's G25 standard reference populations (nMonte-style optimization).
Yamnaya_RUS_Samara
49.8%
TUR_Barcin_N
36.4%
WHG
13.8%
Ancient Population Distances
Closest ancient reference populationsScotland_LIA
0.0252
England_EastYorkshire_MIA
0.0253
England_MIA_LIA
0.0261
VK2020_Faroes_EM
0.0261
Scotland_MIA
0.0262
England_EIA_low_res
0.0263
Scotland_LBA
0.0272
England_Roman
0.0273
VK2020_Scotland_Orkney_VA
0.0282
England_EIA
0.0284
Scotland_EIA
0.0288
England_EastYorkshire_LIA
0.0289
England_MIA_LIA_low_res
0.0289
England_LBA
0.0301
VK2020_GreenlandE_VA
0.0302