Which preposition to use with froid

of Occurrences 3%

She has often boasted of the energetic sang-froid of her merchants; when ruined, they neither lament, nor are discouraged; there is a fortune to make again.

with Occurrences 2%

I cried out, terrified at the sang-froid with which this proposition was put to me.

throughout Occurrences 1%

She maintained her attitude of complete sang-froid throughout the service, and Piers watched her critically with that secret smile at the corners of his lips which was not good to see.

Which preposition to use with  froid