Dubno

First mentioned in a chronicle of 1099, when it was in possession of Yaroslav the Wise's grandson David of Brest, Dubno was even a seat of local princes for a short period of time. In the early 14th century it was annexed by Poland with the rest of Halych-Volynia. Later, it became a notable royal stronghold guarding that country's eastern border.

Granted city rights in 1498, the town attracted many foreign settlers, most notably Jewish and Armenian. As such, it became the seat of one of the oldest and most vibrant Jewish communes in Central Europe. Since 14th century owned by the mighty Ostrogski family, who built the Dubno Castle during the times of Vasyl Ostrozhsky. Between 1489 and 1506 the castle was significantly expanded by Konstanty Ostrogski, who made it a modern fortress, one of the strongest in the area