Unknown 1599(Italy)
No entry in Repetti, Dizionario. According to the editor in CHLA 24:764, to be identified with Tribbioli, locality close to Montepulciano (province of Siena).
Unknown 2612(Germany)
To be identified with a '-biberg', most likely Oberbiberg or Unterbiberg, both in district Munich (but not adjacent). FRE editor prefers Oberbiberg.
Unknown 875(Italy)
Possibly Cascina Romigliana di Carpaneto (province of Piacenza)