The article describes results of archive searches, conducted in the Geheimes Staatsarchiv PreuBischer Kulturbesitz in Berlin. The visit had two targets. The first one w as to get acquainted with the office-archival aids in the Regierungsbezirk Bromberg in order to find archival sources, which would allow for establishing a perfect archival inventory for the archival group stored in Berlin and Bydgoszcz. The second target w as to perform searches regarding the records related to Bydgoszcz. There are many interesting sources to the history of the city and region in the archival materials related to Bydgoszcz
