Haplogroup L627

Date: [unknown] [unknown]
Location: [unknown]

Contents 1 Haplogroup L627 Overview 2 Haplogroup L627 Age Estimation 3 L627 Phylogenetic Parent 4 Phylogenetic Children of L627 5 Sources

Haplogroup L627 Overview

FTDNA estimates L627 emerged ca. 1300 BCE (during the Late Bronze Age). L627 was among many Celtic Britons who were involved in large-scale migration into Southern Britain during the Middle to Late Bronze Age (perhaps narrowed down even more precisely to between 1000 and 875 BC).^[1] Further, given Big Y-700 test results, by the Iron Age, it seems possible that L627 may have been among the Dumnonii/Dumnones^[2], or perhaps, the Durotriges^[3] Brythonic^[4] tribes who occupied Cornwall, Devon, Somerset, Dorset, and Wiltshire.

By the time BY3364 branched from L627, ca. 450 AD/CE, it's possible the line was in or near the Kingdom of Dumnonia^[5]... the Latinised name for a Brythonic kingdom that existed in Sub-Roman Britain between the late 4th and late 8th centuries CE in the more westerly parts of present-day South West England. It was centred in the area of modern Devon, but also included modern Cornwall and part of Somerset. While the two subclades of BY3364 show in SW Scotland, Cheshire, Lancashire, and Yorkshire, an older BY3364 line shows still being present in Wiltshire (landlocked and bordering the counties of Dorset to the south-west and Somerset to the west). It may be that while other lines fled as Saxons continued to push into the area, this small grouping represents a few BY3364 who remained.

Haplogroup L627 Age Estimation

• Per FTDNA, L627 represents a man who is estimated to have been born around 3,300 years ago. That corresponds to about 1300 BCE.
• Per Alex Williamson's Big Tree (R-P312 Y DNA descendant lines) age estimations (based on the method of Dr. Iain McDonald), the median age of BY3368 is "2281.68 YBP (332 BC). The 95% confidence interval is 1049 BC to 352 AD".
• Per YFull (based on Adamov, Guryanov, Korzhavin, Tagankin, and Urasin, 2015) : Unrounded age - 3554 ybp; Rounded age - 3600 ybp ; age by all (limited) samples - 3700 ybp.

L627 Phylogenetic Parent

• CTS3655/S3787

Phylogenetic Children of L627

• BY3364
• FGC3911

Sources

1. ↑ https://www.newscientist.com/article/2302954-bronze-age-migration-may-have-brought-celtic-languages-to-britain/
2. ↑ https://en.wikipedia.org/wiki/Dumnonii
3. ↑ https://en.wikipedia.org/wiki/Durotriges
4. ↑ https://en.wikipedia.org/wiki/Brittonic_languages
5. ↑ https://en.wikipedia.org/wiki/Dumnonia#:~:text=Dumnonia%20is%20the%20Latinised%20name,present%2Dday%20South%20West%20England