Ostrog

The Hypatian Codex first mentions Ostroh in 1100, as a fortress of the Volhynian princes. Since the 14th century, it was the seat of the powerful Ostrogski princely family, who developed their town into a great centre of learning and commerce. Upon the family's extinction in the 17th century, Ostroh passed to the princes Lubomirski. In the 16th century, first East Slavic books, notably the Ostrog Bible, were printed there. The town formerly had a sizable Jewish community, whose rabbis included Kalonymus Haberkasten, Samuel Edels, and Solomon Luria.