CROSSEN Now KROSNO ODRZANSKI.
Town in western Poland, at the confluence of the Odra (Oder) and the Bodr, northwest of Zielona Gora and southeast of Frankfurt an der Oder. Crossen belonged to the Duchy of Glogau after the partition of Lower Silesia in 1251 and held by either the Dukes of Glogau or those of Sagan.
After the death of the last Duke of Glogau in 1476, it fell to his widow, a Brandenburg princess. After her death, her nephew, Joachim I of Brandenburg took possession. Between 1535 and 1571 Crossen was held by his younger son, Hans, Margrave of Cüstrin, together with the Neumark.