Which preposition to use with statim

in Occurrences 2%

Ianuarij nono, migrauit ad Christum, in conuentu Minorum: cuius vitam statim in fine, et vsque nunc claris miraculis diuina prouidentia approbat, et commendat, prout continebatur in quaterno, à quo concordantias hic superseminaui.

Which preposition to use with  statim