Franziskus Berlatz, a physician (Arzt), and his wife Anna settled in the Volga German colony of Katharinenstadt on 5 March 1767. They are recorded there on the 1767 census in Household No. 113.
The 1767 census records that Franziskus Berlatz came from the village of Liege.
- Pleve, Igor. Einwanderung in das Wolgagebiet, 1764-1767 Band 2 (Göttingen: Göttinger Arbeitskreis, 2001): 300.