Which preposition to use with dolt

in Occurrences 2%

"One moment, Monsieur" De Folligny only smiled, put on the power and in a moment was speeding down the cobbled street, leaving Philidor staring after them, his head full of wild thoughts of pursuit, the most conspicuous dolt in all Verneuil.

of Occurrences 2%

And I know that these poor country-folk, these good-natured dolts of peasants have not the imagination, much less the courage" "But what of criminals from outside, from the great cities, from London and Paris and Berlin?

Which preposition to use with  dolt