The Historical Archive of the Secretariat of Vatican State
How to search the archive by last name?
You go to the inventory of the collection https://www.vatican.va/roman_curia/secretariat_state/sezione-rapporti-stati/archivio-storico/serie-ebrei/pdf/ASRS-Inventario-Ebrei-online_1-119.pdf
Then you make a textual research of the family name.
If you find a family name of your interest, on the most left column in bold character you'll find the number of the archivial position of the file [in this archive called "posizione"] take note of the pages [here called "ff."]
Then you go to the page:
In the lower part of the page you find title "Posizioni archivistiche on-line".
You click on the link with the number of the file "Pos. . . " number.
You will be directed to the file and then you have to browse the pages.
Nardo Bonomi Braverman
Greve - Firenze- Italy
LUFT and GRUNBLATT from Kolomya
GROBMAN from Gaysin GONDELMAN
(Author of http://www.jewishgen.org/infofiles/Italy/italian.htm)