I'm I-M253 and X2b. That could be accounted for a number of ways, not being entirely sure of my birth parents - either one. The first way is that I-M253 is first and foremost a proto-I group that originated in Georgia-Greece. Greece was Anatolia before civilization made it a Mediterranean culture. X2B is a Neolithic Maternal line from that area that split into a number of branches, including the famous one that made it all the way to the American Midwest. So, Jewish refugees, called the Diaspora, may have picked up both these proto-groups, or pre-historic groups, and carried them northwards. More likely is that one of my parents was a mixture of Greek, Catalonian, Jewish and Italian and the X2b was a Greek residual, there being a large number of surviving neolithic genes in that population. As I said, the paternal I-M253 line was nearby to or within one of ethnicities listed above, so it would have to be Norman (Danish) to bring it to the general region of that list; namely, Sicily, but also Southern Italy and the Peloponnese.
A lot of the difficulty of writing about DNA is that as soon as you grab onto a case study, you really cannot depend upon the subjects own memories, or what they were told as children. Some children are punished by being told they are not the parents' natural children, and others are really not sure, not having really been up to considering the matter or getting the necessary testing. So, do with this as you like. The majority of the mtDNA is ethnically Diaspora, according to National Geographic's tester, Helix, and the other ethnic similarities are listed. The y and x parental lines are real loopers, considering the mother was thought to be German- or French Jewish, with a strictly Ashkenazi background. That could not be with the findings of Helix. On the other hand, the father, even though he was Sicilian, could be both I-M253 and Jewish, in part.