EN
In the paper worked analysis and evaluate of Middle Vistula River floods during in the last millennium on the base instrumental and proxy data. Information on floods in the pre-instrumental period is derived from documentary sources. In order to extend the flood - related records, recourse must be made to historical hydrology main river - Vistula River. Sources of flood -related information (traces on the memory great river water levels) are examined and the particularities of the situation, driven by the history of Poland, were explained. Changing characteristics of floods of different generation mechanisms (intensity of precipitatation, snowmelt or ice-jam discussed).