Bourbon Surname: Y-DNA Haplogroup
Published genetics research or a documented case study links the surname Bourbon to a specific Y-DNA paternal-line haplogroup.
R-Z381 (R1b1b2a1a1b*)
Clade R1b
Also spelled: House of Bourbon, Bourbon-Parma, Orleans-Braganza (Capetian cadet branch)
Y-STR (38 markers) and Y-SNP typing of three living male-line Bourbon descendants (Bourbon-Parma and Orleans-Braganza princes) established the true dynastic haplogroup as R-Z381, contradicting a G2a result that had been controversially attributed to relics of Louis XVI and Henri IV.
Source: Larmuseau MHD, Delorme P, Germain P, et al. "Genetic genealogy reveals true Y haplogroup of House of Bourbon contradicting recent identification of the presumed remains of two French Kings." European Journal of Human Genetics. 2014;22(5):681-687.
How to read this. A surname match means some people with that surname, in a specific study or family record, were found to share a haplogroup, most likely due to a shared patrilineal ancestor generations back. It is not proof that you personally carry that haplogroup: surnames change through adoption, remarriage, non-paternity events, and independent origin of the same name in different families. For your own confirmed haplogroup, test your DNA with our HaploAI Y-DNA/mtDNA predictor.
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