Which preposition to use with concilium

on Occurrences 2%

Yale Concilium on International and Area Studies, Yale University (PWH); 11Mar74; R572683. R572684. Heroes and heroines.

in Occurrences 1%

Yet Tully saith, Non est concilium in vulgo, Non ratio, non discrimen, non differentia, The vulgar have no learning, wit, nor sense.

Which preposition to use with  concilium