Follow
This project is a meeting place for users who share the I-BY13707 Y-DNA haplogroup, which means they are related along their paternal lines. Users in this group may want to share their family trees with each other to find overlaps and merge duplicate profiles in order to join or expand the World Family Tree and discover new relatives.
Y-DNA haplogroup I2a2a3a
I2a2a M223-Z161-L801- CTS1977-BY13707
I-Z161 is the largest I2a2 subclade today. Also formed about 10,000 years ago, it is composed of three top-level subclades: L623, Y5188 and L801. The two first are extremely rare and have only been identified in Scotland and Ireland. 99% of Z161 members belong to L801 and share a common ancestor who lived 4,000 years ago, although L801 subclades experienced a dramatic expansion in the last 2,000 years. L801 is found predominantly in Germanic countries, with a particularly high concentration in Denmark, Germany, the Netherlands, England and in Northwest Sicily (Norman settlement). It is also found at lower densities throughout the rest of Europe, from Portugal to Russia. I2-L801 is thought to have been propagated around Europe by the Danish Vikings (Britain, Normandy, Sicily), the Swedish Vikings (Baltic, Russia, Ukraine), the Goths (Moldova, Balkans, Italy, south-west France, Spain), the Suebi (Portugal and Galicia), the Lombards (attested by a hotspot in Campobasso, Molise), and the Franks (Rhineland, Belgium). All top level subclades are found in Germany, which points to its place of origin. Z161+ commonly known as the I2 Continental clade (except Continental 3).
The Y16963 and CTS1977 subclades are also found in Germany, the Benelux and the British Isles.