de Mascarenhas Surname: Y-DNA Haplogroup
Published genetics research or a documented case study links the surname de Mascarenhas to a specific Y-DNA paternal-line haplogroup.
R-U106
This entry is community-submitted and has not been validated by a peer-reviewed academic study. Treat it as anecdotal until independent research confirms it.
Bulk import from a FamilyTreeDNA public geographic Y-DNA project results page. Community-submitted data, not peer-reviewed.
Source: FamilyTreeDNA Portugal DNA Project public results page (https://www.familytreedna.com/public/portugal), community-submitted, not peer-reviewed
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.
Confirm your real haplogroup from your raw DNA
A surname link is a hint, not a certainty. Upload your raw DNA file and our HaploAI engine predicts your actual Y-DNA and mtDNA haplogroups directly from your genome.