Which preposition to use with salvatore

with Occurrences 2%

On arrival at Portici we dismissed our guide Salvatore with a scudo pour boire, besides the stipulated price.

at Occurrences 1%

Far less noteworthy, yet still not utterly despicable, is the bas-relief of Biduinus over the side-door of S. Salvatore at Lucca.

by Occurrences 1%

" He had come almost to the church of San Salvatore by this time.

Which preposition to use with  salvatore