Which preposition to use with whensoever

in Occurrences 2%

"My anxious recollections and my best wishes are irresistibly attracted whensoever in any country I see an oppressed nation unfurl the banner of freedom.

by Occurrences 1%

For speech is longer-lived than act, whensoever by favour of the Graces the tongue hath drawn it forth out of the depth of the heart.

Which preposition to use with  whensoever