This is the haplogroup of the Frankel family, who can be traced back to mid 1700s in Ratnycia (Rotnitsa), in the Trakai Gubernia of the Russian Empire. Ratnycia was an agricultural settlement of the larger town, Merkine (Merecz) that had a significant and important Jewish community going back to the late Middle Ages. Ratnycia families were sometimes recorded in Merkine, sometimes in Ratnycia.
Frankel is an "old" name, perhaps denoting a rabbinical family, according to one scholar. Frankel - from Franconia.
There is a Geni project on this family.
