There are at least two separate sub-groups carrying the name Neviazhsky. But are Jewish; one is Levite having the haplotype 'R1A'; the other Israelite, having the haplotype 'Q'. Both are from Kovna Guberniia in the late 18th & early 19th centuries, and seem to be related because of their common history. But since their haplotypes are different, they cannot be descended from the same male.