Settlement in north Italy According to the ancient authors, the Boii arrived in northern Italy by crossing the
Alps. While of the other tribes who had come to Italy along with the Boii, the
Senones,
Lingones and
Cenomani are also attested in Gaul at the time of the Roman conquest. It remains therefore unclear where exactly the
Central Europe origins of the Boii lay, if somewhere in Gaul,
Southern Germany or in Bohemia.
Polybius relates that the
Celts were close neighbors of the
Etruscan civilization and "cast covetous eyes on their beautiful country". Invading the
Po Valley with a large army, they drove out the Etruscans and resettled it, the Boii taking the right bank in the center of the valley.
Strabo confirms that the Boii emigrated from their lands across the
Alps and were one of the largest tribes of the Celts. The Boii occupied the old Etruscan settlement of Felsina, which they named
Bononia (modern
Bologna). Polybius describes the Celtic way of life in
Cisalpine Gaul as follows: The archaeological evidence from Bologna and its vicinity contradicts the testimony of Polybius and Livy on some points, who say the Boii expelled the Etruscans and perhaps some were forced to leave. It indicates the Boii neither destroyed nor depopulated Felsinum, but simply moved in and became part of the population by intermarriage. The cemeteries of the period in Bologna contain
La Tène weapons and other artifacts, as well as Etruscan items such as bronze mirrors. At
Monte Bibele not far away one grave contained La Tène weapons and a pot with an Etruscan female name scratched on it. A short time earlier, they had been defeated at the
Battle of Telamon in 225 BC, and were again at
Placentia in 194 BC (modern
Piacenza) and
Mutina in 193 BC (modern
Modena).
Publius Cornelius Scipio Nasica completed the Roman conquest of the Boii in 191 BC, celebrating a
triumph for it. After their losses, according to Strabo, a large portion of the Boii left Italy.
Boii on the Danube Contrary to the interpretation of the classical writers, the Pannonian Boii attested in later sources are not simply the remnants of those who had fled from Italy, but rather another division of the tribe, which had settled there much earlier. The burial rites of the Italian Boii show many similarities with contemporary Bohemia, such as
inhumation, which was uncommon with the other Cisalpine Gauls, or the absence of the typically western Celtic
torcs. This makes it much more likely that the Cisalpine Boii had actually originated from Bohemia rather than the other way round. Having migrated to Italy from north of the Alps, some of the defeated Celts simply moved back to their kinsfolk. The Pannonian Boii are mentioned again in the late 2nd century BC when they repelled the
Cimbri and
Teutones (Strabo VII, 2, 2). Later on, they attacked the city of
Noreia (in modern Austria) shortly before a group of Boii (32,000 according to
Julius Caesar) joined the
Helvetii in their attempt to settle in western Gaul. After the Helvetian defeat at
Bibracte, the influential
Aedui tribe allowed the Boii survivors to settle on their territory, where they occupied the
oppidum of
Gorgobina. Although attacked by
Vercingetorix during one phase of the war, they supported him with two thousand troops at the battle of
Alesia (Caesar,
Commentarii de Bello Gallico, VII, 75). Again, other parts of the Boii had remained closer to their traditional home, and settled in the Slovak and
Hungarian lowlands by the
Danube and the
Mura, with a centre at
Bratislava. In July 2025 it was published that Czech archaeologists have uncovered a
Celtic settlement near
Hradec Králové in the Czech Republic, dating back to the
La Tène period. The site is around 65 acres, larger ten times larger than typical settlements in the region and is thought to have served as a major economic and administrative center for the Celtic Boii tribe, whose name gave rise to “
Bohemia.” Excavations revealed over 13,000 artifacts, including gold and silver coins, amber, ceramics, pottery kilns, glass workshops, and coin molds. This is evidence of sophisticated craftsmanship and trade along the ancient
Amber Road. A rare ceramic shard engraved with a horse was also found. The settlement appears to have gradually declined without signs of conflict. The finds are currently being studied and will be featured in an upcoming museum exhibition.
Dacian Conquest In the middle of the 1st century BC, the Boii tried to expand eastwards into modern-day Hungary, but clashed with the rising power of the
Dacians under their king
Burebista and were defeated. This war is often dated to the 60s or 50s BC or even precisely to 60/59 BC, but cannot be dated with that certainty. The numismatic material suggests that the clash may in fact have only happened by 41/40 BC. The Dacians under Burebista likely used a combination of military force and political strategies to conquer the Boii and compel some of them to migrate. Once the Boii were defeated or weakened, the Dacians would have annexed their territory, incorporating it into their expanding kingdom. If the early dating of the clash with Burebista is accepted, the migration of the Boii to Gaul and other parts of
Europe may have been a consequence of their defeat and the Dacian occupation of their lands, as they sought new territories and opportunities elsewhere. However, specific details of this conquest and migration are often scarce in historical records, leaving much open to interpretation. When the Romans finally conquered
Pannonia in 8 AD, the Boii seem not to have opposed them. Their former territory was now called
deserta Boiorum (deserta meaning 'empty or sparsely populated lands'). However, the Boii had not been exterminated: There was a
civitas Boiorum et Azaliorum (the Azalii being a neighbouring tribe) which was under the jurisdiction of a prefect of the Danube shore (
praefectus ripae Danuvii). This , a common Roman administrative term designating both a city and the tribal district around it, was later adjoined to the city of
Carnuntum. ==The Boii in ancient sources==