Haplogroup J

Y-DNA (paternal line)

A Middle-Eastern lineage; J1 is common in Arabia, J2 in the Fertile Crescent and Mediterranean. [isogg]

In the ancient British record

Frequency of J among ancient male samples from Britain & Ireland, by period — from our aggregation of the CC0 Allen Ancient DNA Resource. See the full chart.

Early Medieval 1%
Medieval+ 1%
Roman 2%

Fuller account: J on Wikipedia.

Remember: a haplogroup is a deep, broad lineage shared by many people — not an ethnicity, a nationality or a clan. See what DNA can and can’t tell you.

Sources

[isogg] International Society of Genetic Genealogy (ISOGG), Y-DNA Haplogroup Tree. Reference — cite for haplogroup nomenclature only (not frequencies) · link