actually there is no single proof for connection between county name and Teutonic knoights...nor that the Teutonic knoights ever were there...it is how some Romanian historians tried to explain name related to Germans... but its just assumption
http://en.wikipedia.org/wiki/Târgu_Neamţ#Historywell, Goths were not I2a-din carriers - that is clear from lack of it in the countries they invaded and settled..Scirii are pretty good theory because it is very likely tribal name of same origin as Serians, Zeruiani, Scordisci/Serdi, Shedana (Serbonian bog is a lake in Egypt named after them), Sardinia, Sart and location names such as Sard, Serdica, Serrai/Serres......I2a relates locations of all these people in past...I do not say that modern Serbs origin from Scirii (though it is a thought that should not be completely ignored), I say that tribal name and part of its genetics has same distant roots... I say that tribal name is related originally to I2a people..... and that from part of those people many Serbs and Croats origin....and just one small idea that at first may look far fetched: Note that Scirri are paired with Hirri...same language, adjascent locations...some historians considered that Hirri and Scirri are in fact same tribal name in different dialects..this maps exactly to what we have with Serbs and Croats...related tribes in adjascent teritories and with argued by some interchangable Srb/Hrv root of tribal names... same thing is with Helvetti and Scordisci as related Celtic tribes with adjascent teritories... do not you see a pattern there? it was I2a way of giving tribal names.... besides if all group I haplogroups except I2a-Din are Germanic, and if I2a-Din is estimated by leading researcher to have spread from Germany or north Poland (Germanic land in past), why would not it be logical that I2a-Din was originally Germanic...I have shown elsewhere that there are very strong indications that Serians = Cimmerians and Cimmerians are thought to be Gomer = original tribal name of Germans... so for me this is solid theory...it is only question when did ancestors of modern Serbs split from the rest and were they in historic times before mention in history considered Slavic, Sarmatian, Germanic or Celtic, or perhaps even Turkic.. and genetics will show us that, if there is good will to investigate the issue..