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Genetic study The Genomic Legacy of the Norman Conquest in Rural England

Tautalus

Regular Member
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93
Ethnic group
Portuguese
Y-DNA haplogroup
I2-M223 / I-FTB15368
mtDNA haplogroup
H6a1b2y
SUMMARY
The Norman Conquest of 1066 CE reshaped the political and cultural landscape of England, yet its demographic consequences remain poorly understood, particularly outside elite and urban contexts where historical evidence is concentrated. Here, we investigate the population history of a rural English community spanning the Conquest using genome-wide ancient DNA from the Priory Orchard site, a cemetery in Godalming (Surrey) in use between the 9th and early 13th centuries CE. We generated genomic data from 78 individuals and established radiocarbon dates for 98 individuals from the site. Population genetic analyses place Priory Orchard individuals within the genetic continuum of early medieval populations from the North Sea region. Ancestry modelling indicates that this rural community carried substantial Scandinavian/Viking-related ancestry alongside a persistent Saxon-related component and a smaller French-related contribution. However, stratifying individuals by date, before and after 1066 CE, reveals no clear genome-wide discontinuity across the Conquest horizon, suggesting demographic continuity through this crucial political and social transition. This pattern is consistent with historical and archaeological evidence indicating that many of the most visible transformations following the Conquest occurred primarily among the elite. Our results provide the first genomic perspective on communities living through the Norman Conquest and indicate that rural southern England saw persistent migration links with other areas facing the North Sea rather than abrupt population replacement.

a) PCA of genetic variability of POG (Priory Orchard site in Godalming) individuals onto the principal component space defined by a reference panel of present-day individuals
b) PCA with coeval individuals from Saxon, Viking, Early Medieval, and Late Antiquity groups across regions around the North Sea
c) Ancestry model-based clustering (K=4) analysis of an extended cohort including 1,634 individuals and a subset of roughly contemporaneous individuals
Dwim9Zp.png


ADMIXTURE results of 16 individuals from the periods Pre-Norman Conquest and Post-Norman Conquest
n7BlZGJ.png

Haplogroups
Skeletal IDOsteo SexSexYchr Hgmt Hg
POG14-1023MM?R-M269*H1c1
POG14-1027M-H1an
POG14-1033MMR-CTS11019H6a1b4
POG14-1036M?M?R-L23*H2a2
POG14-1038M-K1a4a1e*
POG14-1041-MI-Y7219*H6a1a
POG14-1050M?-H1c13
POG14-1052--U5a1a2b
POG14-1059FFK1e
POG14-1069FFH1a
POG14-1070F?-H
POG14-1078-FH1c1
POG14-1079MMI1*T2b5
POG15-3007M-H3+152
POG15-3011MMR-Y179346*H1a
POG15-3033MMR-L23*X2c1a
POG15-3035--T2b9
POG15-3041F?FU5a2a1d
POG15-3048--T2b5a1
POG15-3053F?FV
POG15-3058--U5b2b4a
POG15-3065MMR-YP356*K2a
POG15-3069FFH1c13
POG15-3102F?-H53
POG15-3107F?FT1a1
POG15-3108MM-H1c13
POG15-3127--H1c1a
POG15-3133FFT2e1a1b
POG15-3136FFH6a1a
POG15-3146FFH1ai1
POG15-3148MMR-Y30815*H1c1
POG15-3160F?FH1be
POG15-3165FFH1c+152
POG15-3170F?-W3a1
POG15-3176M?MR-Z30*H1ai1
POG15-3179M?MR-M269*I4a
POG15-3193MMR1a*T2b5a1
POG15-3199MMR-Y11145*K1a
POG15-3215MFJ2a1a1a2
POG15-3221FFU4a2
POG15-3228FFH
POG15-3229FFH2a
POG15-3232FFU4a2
POG15-3248FFH45b
POG15-3249MMI-Y3672*K1a4a1a+195
POG15-3258MM-H1g1
POG15-3262M-H6a1a
POG15-3264F-U8
POG15-3275--U5b2b3a1a
POG15-3281M-K1b2b
POG15-3328MMJ-Y294088K1a
POG15-3331MF?H53
POG15-3334M-H5b
POG15-3339FFH1c1
POG15-3340F?FT2e1a1b
 
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