Which preposition to use with bagne

at Occurrences 3%

Winter was sentenced to eight years' imprisonment, and would now be at liberty but for a forgery which he committed while at Bicêtre, which, bringing on him a fresh sentence of eight years at the galleys, he was conducted to the Bagne at the expiration of his original sentence, and is there at present.

of Occurrences 1%

" They had just committed many considerable robberies, which they are now repenting in the bagnes of France.

Which preposition to use with  bagne