Z49>Z142>Z150>FGC12381, Y3140 > FGC12378, Y3142

[Mitchell-Atkins]

The Helvetii were aligned with the Boii during Caesar's Gaulish campaigns

the Helvetii did not give up their planned emigration, but burned their homes in 58 BC.[37] They were joined by a number of tribal groups from neighbouring regions: the Raurici, the Latobrigi, the Tulingi and a group of Boii, who had besieged Noreia...the Boii who had accompanied the Helvetii would settle on their own territory as allies in the oppidum Gorgobina...at the Helvetian camp, listing in detail all men able to bear arms with their names and giving a total number for the women, children and elderly who accompanied them.[42] The numbers added up to a total of 263,000 Helvetii, 36,000 Tulingi, 14,000 Latobrigi, 23,000 Rauraci, and 32,000 Boii,

Prior to settling in present day Switzerland, it appears they were further north earlier on.

That the Helvetians originally lived in southern Germany is confirmed by the Alexandrian geographer Claudius Ptolemaios (c. 90–168 AD), who tells us of an Ἐλουητίων ἔρημος (i.e. "Helvetic deserted lands") north of the Rhine.[24] Tacitus knows that the Helvetians once settled in the swath between Rhine, Main, and the Hercynian forest.[25] The abandonment of this northern territory is now usually placed in the late 2nd century BC, around the time of the first Germanic incursions into the Roman world, when the Tigurini and Toygenoi/Toutonoi are mentioned as participants in the great raids.

This area is between the FGC47869 polygon and Bohemia, so it may be that the Boii were friendly neighbors to the Helvettii in this area.

Map of Oppida (Celtic settlements, ~200 BC - late 1st century BC).