Ambarri
The Ambarri were a Gallic people dwelling in the modern Ain department during the Iron Age and the Roman period. Name. They are mentioned as "Ambarri" and "Ambarros" by Caesar (mid-1st c. BC), and as "Ambarros" by Livy (late-1st c. BC), The Gaulish ethnonym "Ambarri" could mean 'on both sides of the Saône river', stemming from the Gaulish suffix "amb-" ('around') attached to the pre-Celtic name of the Saône river, "Arar". It has also been interpreted as a contraction of "Ambi-barii" ('the very-angry'), formed with the intensifying Gaulish suffix "ambi-" attached to "bar(i)o-" ('wrath, fury, passion '; cf. Welsh "am-far" 'mad rage', Old Irish "barae" 'fury, anger'). The cities of Ambérieu-en-Bugey, attested ca. 853 as "Ambariacus" ("Ambayreu" in 1240), Ambérieux-en-Dombes, attested in 501 as "Ambariaco" ("Ambaireu" in 1226), and Ambérieux, attested in 892 as "Ambariacum", are named after the Gallic tribe. They originally derive from a form "Ambarria" attached to the suffix "-acos". Geography. The Ambarri occupied a tract in the valley of the Rhône, probably in the angle between the Saône and the Rhône; and their neighbors on the east were the Allobroges. They are mentioned by Livy (v. 34) with  the Aedui among those Galli who were said to have crossed the Alps into Italy in the time of Tarquinius Priscus. They are not mentioned among the "clientes" of the Aedui. ("B. G." vii. 75.) History. According to Roman historian Titus Livius, the Ambarri joined Bellovesus' legendary migrations ca. 600 BC towards Italy: Julius Caesar calls them close allies and kinsmen of the Aedui: They are also mentioned by Caesar along the Aedui and the Allobroges: