Polish castle built in the Middle Ages
Ostroróg Castle is a castle on a peninsula (formerly an island) in Ostroróg in Greater Poland Voivodeship. Ostroróg Castle was probably built around the middle of the 14th century by the ancestors of Jan Ostroróg.[1][2]
References
52°37′27″N 16°27′04″E / 52.6242°N 16.4511°E / 52.6242; 16.4511