Page "Boii" Paragraph 18
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.
Around 60 BC they clashed with the rising power of the Dacians under their king Burebista and were defeated.
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 civitas, a common Roman administrative term designating both a city and the tribal district around it, was later adjoined to the city of Carnuntum.