Комментарий ув. пана Милевского насчет YP6504:
According to YFull, clade Y11268 expanded about 1600 years ago, although I suspect that YFull underestimates by about 10-20%, so in such case this clade might be a bit older (about 1900 years old). YP6504 is probably not much younger (I would say about 1600 years old) and its geographical distribution is nearly as wide as that of the parental clade Y11268, so I would assume that they both originated in about the same region. Most likely this was a post-Yukhnov territory that was incorporated into the Post-Zarubintsy horizon and then became a part of the Kiev culture before evolving into the post-Kiev Kolochin culture. As the Kolochin culture is suspected of significantly contributing to the expansion of the Early East Slavs in different directions, I would assume that the early members of clade YP6504 were among them, and thus they ended up mostly in Belarus and Russia, but also in some neighboring regions in Ukraine, Lithuania and Poland.