Judges 1:7

And Adonibezek said, Threescore and ten kings, having their thumbs and their great toes cut off, gathered their meat under my table: as I have done, so God hath requited me. And they brought him to Jerusalem, and there he died.

Threescore and ten kings. So great a number will not appear strange, when it is considered that, anciently, every ruler of a city or large town was called a king. It is not improbable that, in the large region of Canaan called the Negeb, or "south country," there might in earlier times have been many rulers, until a turbulent chief like Adoni-bezek devoured them in his insatiable ambition.

They brought him to Jerusalem, and there he died. They brought Adoni-bezek there in order, probably, that his fate being rendered so public might inspire terror far and wide.