Sorry, but just no. Celtic presence east of the Rhine is well attested: the Celts didn't completely reside on the west bank.
- Vindobonna (Vienna, Austria)
- Brigetio (Szőny, Hungary)
- Cambodunum (Kempten)
- Boiodurum (Passau)
- The 'Hercynian Forest' and the 'Gabretae Forest' (compare Gaulish 'Gabros', Irish 'Gabhar', Welsh 'Gafr', Breton 'Gavr')
- The Vindelici (including sub-tribes like Brigantes, which are also found in Britain and the Licates)
- The Lech (Licca) river, compare Irish 'Leac', Welsh 'Llech', Breton 'Lec'h' (rock, slab)
- Noric town names such as Gabromagus, Gobanodurum, Lauriacum (all mentioned by Ptolemy)
- The Cotini of the western Carpathians, which are explicitly refered to by Tacitus as speaking Gaulish.
Also, to quote myself from earlier:
Ptolemy in the 2nd century AD records approximately 80 town names in Germania Magna, approximately a sixth of which have readily identifiable Celtic etymologies (Eburodunum, Segodunum, Tarodunum, Celamantia, Carrodunum, Lugidunum).
The Celtic incursion into the Balkans also produced other settlements, as far as the mouth of the Danube:
- Durostorum (Silistra, Romania - also mentioned by Ptolemy)
- Aliobrix (Orlivka, Ukraine)
- 'Vindelia' (localization unclear, but mentioned by Ptolemy in Galatia, Anatolia)
If you do not believe me anything of that, read the Geography of Claudius Ptolemaios.
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I was talking about L11 (without U106, S116), which is clearly absent in Iberia. It does not matter that R1b-S116 (without U106) is found in large concentration in Iberia because it's outgroups are virtually absent in Iberia but found in Central Europe, which in itself proves that a connection with Beaker-Bell is invalid.
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EDIT: there is also
R1b-Z196 which should be considered, due to which the L11 peak in Iberia looks a lot less clear-cut and obvious than just L11 without U106 or S116.
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This is wrong. The connection between Bavaria and the Boii is only an indirect one. Much of Bavaria (especially Bavaria proper) was originally inhabited by a different Celtic tribe, the Vindelici. In the 1st century BC, the Germanic Markomanni invaded Bohemia and conquered the Boii. In the migrations period what remained of the Markomanni migrated into modern-day Bavaria. In contrast, Strabo (Book 7, chapters 1,2 and in particular 3) explicitly mentions the Boii as being Celtic. In any case, the word 'Boi-' is Celtic in etymology, compare Irish 'Bó', Welsh 'Buwch', Breton 'Buoc'h' and Celtiberian '
Boustom'. The word in turn is derived from the PIE word for 'cow' or 'cattle'. In the Celtic languages PIE *gw was rendered to *
b, where as in the Germanic languages it was rendered to *
kw, which is why the English word is '
cow'.