Chernyakhovsk

Chernyakhovsk – known prior to 1946 by its German name of Insterburg – is a town in the Kaliningrad Oblast of Russia, where it is the administrative center of Chernyakhovsky District. Located at the confluence of the Instruch and Angrapa Rivers, which unite to become the Pregolya River below Chernyakhovsk, the town had a population in 2017 of 36,423.

Chernyakhovsk was founded in 1336 by the Teutonic Knights on the site of a former Old Prussian fortification when Dietrich von Altenburg, the Grand Master of the Teutonic Knights, built a castle called Insterburg following the Prussian Crusade. During the Teutonic Knights' Northern Crusades campaign against the Grand Duchy of Lithuania, the town was devastated in 1376 and then again by Polish troops in 1457. The castle had been rebuilt as the seat of a Procurator and a settlement also named Insterburg grew up to serve it.

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