[region] Bromberg was the northern of two Prussian administrative regions, or Regierungsbezirke (Rejencja), of the Grand Duchy of Posen (1815–49) and its successor, the Province of Posen (1849–1918). The administrative center was the city of Bromberg (Bydgoszcz). The region was bordered on the south by the Regierunsbezirk Posen, to the ... Found on http://en.wikipedia.org/wiki/Bromberg_(region)