Which preposition to use with achaia

about Occurrences 1%

[Footnote 33: Gallio was Proconsul of Achaia about A.D. 53, when St. Paul was brought before his tribunal.

in Occurrences 1%

GALLIO, the Roman proconsul of Achaia in the days of St. Paul, before whom the Jews of Corinth brought an appeal against the latter, but which he treated with careless indifference as no affair of his, in consequence of which his name has become the synonym of an easy-going ruler or prince.

Which preposition to use with  achaia