Which preposition to use with gregorio

about Occurrences 1%

It had come to-night, but it was of a nature which made it wiser not to tell Gregorio about it.

to Occurrences 1%

She never even asked herself the question, whether it would not be better and easier to end all and leave Gregorio to his fate.

with Occurrences 1%

D.O.] [Footnote 30: This gate, from which at a later date the Via Appia and the Via Latina started, stood near what is now the junction of the Via S. Gregorio with the Vi di Porta S. Sebastiano.

Which preposition to use with  gregorio