Grzybowo pod Wrześnią : potężny gród wczesnopiastowski

History of archaeological studies of the Early Medieval stronghold in Grzybowo, near Września in Central Great Poland has been presented and its role in the process of early Polish state formation has been discussed. The great size of the stronghold, its location in the settlement network of the Piast monarchy, the lack of open settlements in its vicinity, may suggest its special role, mainly as a military center.