Records for Castelfranci are available on FamilySearch. They are not indexed and need to be browsed (
https://familysearch.org/search/collection/2043434). I have taken a lot of notes on the records (Tecce and Gregorio).
If you give me name, parents and DOB, I may be able to cut down on your browse time. My interest centered about Nicola Francesco GREGORIO and Maria Giuseppa TECCE family.