Stearsolina mysterious 1/4 ancestry DNA results

[Jana]

Today my maternal grandma sister finally showed among my matches on ancestry. I don't heave her login data yet, so can't see matches, raw data or genetic regions.
but I can see her ethnicity estimate and it looks like this:

Balkans 39%
Germanic Europe 28%
EE & Russia 13%
Sweden & Denmark 9%
Greece & Albania 7%
Norway 2%
England & NW Europe 2%

Now, based on what I know and when seeing these results, my grandma looks to have been half German (mix of SW German and central German), quarter Serb (Serb from central Croatia), 1/8 Greek (but not from Crete, results would get some Italy/ MENA like, probably central Greece where my ancestral surname peaks) and 1/8 unknown.

We suspected 1/8 unknown could be Hungarian but no, this remaining part looks nearly fully Balkan. This from side that was mixed with Greeks (in Hungary), so perhaps some orthodox minority, like Romanian.
I am leaning Romanian but we can't know until I access her data and matches/regions.

What are your guesses for 1/8 of remaining unknown ancestry?

[Jana]

In case somebody wonders where such crazy mix is from, my grandmother is from Vojvodina (Syrmia and Banat). This was perhaps most multi-ethnic region in entire Europe.

https://en.wikipedia.org/wiki/Vojvodina

[Nurzat]

In case somebody wonders where such crazy mix is from, my grandmother is from Vojvodina (Syrmia and Banat). This was perhaps most multi-ethnic region in entire Europe.

https://en.wikipedia.org/wiki/Vojvodina

on par with Bukovina and Dobrudja in those times. cool!

[Jana]

on par with Bukovina and Dobrudja in those times. cool!

ethnic map of Vojvodina in 1910

[rothaer]

Besides a Romanian, could it not be also simply a Serb?

[Jana]

Besides a Romanian, could it not be also simply a Serb?

Yes, but mix with Greeks occured in Budapest, than descendant came to Vojvodina. Budapest had all kinds of orthodox Balkanites, Romanians, Serbs, Bulgarians, probably also Aromanians.
It I deduce EE and Balkan from Serb side, than remaining 1/8 could score 100% Balkan or 98% Balkan 2% EE on ancestry.

(and part of EE goes to central German side ofc, plus minor part of Balkan goes into Greek 1/8)

[aherne]

Your grandma was obviously half German. Looks like first generation mix of SW Slav with German: maybe that's why you look a bit western shifted?

[Jana]

I tried to assigned this score to most logical ancestry:

1/2 German (28% Germanic Europe, 9% Sweden/Denmark, 2% Norway, 2% England/NW Europe, 9% EE)
1/4 Serb (probably around 21-22% Balkan and 2-4% EE)
1/8 Greek (7% Greece/Albania, 5% Balkan)
1/8 unknown (remaining 10-12% Balkan and possible 0-2% EE)

[MandM]

Damn well it could be anything i mean vojvodina is a melting pot of all sorts of ethnicitys, rusyns,ukranians, slovak, Hungarians,Romanians, Aromanians, Bulgarians, Montenegrin, North Macedonians,German,Gorani,Albanians,Czechs,Russian s,bosnians,jew's, roma, there were even Spanish people who migrated to Vojvodina

[Nurzat]

you have to allow for regional variation, a German in Eastern Europe or the Balkans won't score as one in Germany, Greeks in northern Balkans may have some local mix dragging them north etc.

so, based on regional variation, an additional source, like Romanian, is not necessarily needed, it can be covered by variation in the other sources, as needed, be it to south/north/west/east..