Which preposition to use with crepy

in Occurrences 1%

Joan was away on an expedition to Crepy in Valois, with a small band of three or four hundred brave comrades.

of Occurrences 1%

There is the remnant in Crepy of one of the houses that used to belong to the Dukes of Valois, and at the end of one winding street you find yourself unexpectedly looking through a grilled iron gateway into the ordered stateliness of an old-time chateau.

Which preposition to use with  crepy