Ostrogozhsk

Town and the administrative center of Ostrogozhsky District in Voronezh Oblast, Russia, located on the Tikhaya Sosna River (a tributary of the Don), 142 kilometers (88 mi) south of Voronezh, the administrative center of the oblast. As of the 2021 Census, its population was 32,520.
Ostogozhsk is a historical center of Eastern Sloboda Ukraine. It was established in 1652 by Belgorod Voivode Fedor Arsenyev and Cossack Ivan Zevkovsky (or Dzenkovsky) as Ostogozhsk (little fortress) bringing along some 2,000 resettlers from Chernigov and Nezhin Regiments around an ostrog (fortress) of the Belgorod Defensive Line of Russia.