Which preposition to use with unwisdom

of Occurrences 18%

"You, as one of our profession, Mr. Gifford, will understand that and the unwisdom of premature statements.

in Occurrences 2%

A post-mortem examination, or at least the form of one, upon the Grand Duke revealed, it was said, advanced disease of the liver, the consequences of his unwisdom in the use of cordials and elixirs!

Which preposition to use with  unwisdom