Search for: [Subject and Keywords = Masovia \(Poland \; region\) \- geography \[KABA\]] OR [Subject and Keywords = Masovia] OR [Subject and Keywords = Middle Ages] OR [Subject and Keywords = settlement] OR [Subject and Keywords = Ostroleka district] OR [Subject and Keywords = Mazowsze \(Polska \; region\) \- geografia \[KABA\]] OR [Subject and Keywords = Mazowsze] OR [Subject and Keywords = średniowiecze] OR [Subject and Keywords = osadnictwo] OR [Subject and Keywords = powiat ostrołęcki] OR [Title = Goski\-Witnica, now part of village Piski. Files of Ostroleka district in the Middle Ages. Files of Historico\-Geographical Dictionary of Masovia in the Middle Ages] OR [Title = Goski\-Witnica, obecnie część wsi Piski. Kartoteka powiatu ostrołęckiego w średniowieczu. Kartoteka Słownika historyczno\-geograficznego Mazowsza w średniowieczu] OR [Creator = Institute of History of the Polish Academy of Sciences] OR [Creator = Instytut Historii Polskiej Akademii Nauk]