https://discover.familytreedna.com/y-dna/H-SK1180/tree

Boyt Hap H SNP Line:
H-P96>Z19008>Z19080>SK1180>Z19072>Z19089>Z19049>SK1182>Y20839>Y21630>BY37186>BY37188 (BOYT 1300 CE)
H>P96>Z19008>Z19080>SK1180>FT362000 (Common Male Ancestor H-SK1180 Ireland/France)

All three locations, one in Ireland and two in France have the same Common Male Ancestor at H-SK1180. Both ancient cemeteries in Ireland are considered High Status.

Boyt Hap H SNP Line:
H-P96>Z19008>Z19080>SK1180>Z19072>Z19089>Z19049>SK1182>Y20839>Y21630>BY37186>BY37188 (BOYT 1300 CE)
H>P96>Z19008>Z19080>SK1180>FT362000 (Common Male Ancestor H-SK1180 Ireland/France)

https://www.sciencedaily.com/releases/2026/04/260421042800.htm
A new study published in Nature Ecology & Evolution examines the remains of 132 individuals buried in a large megalithic tomb near Bury, about 50 kilometers north of Paris. The site was used during two separate time periods, with a significant population decline occurring around 3000 BC between them.

Genetic analysis shows that the people buried before and after this decline were not related, indicating a major population replacement.

"We see a clear genetic break between the two periods," said Frederik Valeur Seersholm, assistant professor at the Globe Institute at the University of Copenhagen and one of the lead authors of the study.