Porkhovskaya Krepost'

Porkhov, Russia, Russia

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Porkhovskaya Krepost' in Porkhov, Russia, along the Shelon River, began as a wooden-earth fortification ordered by Alexander Nevsky in 1239 to secure Novgorod's trade route to Pskov, first tested against Lithuanian prince Olgerd's 1346 siege.

Replaced by a compact stone citadel in 1387 featuring four protruding towers 15-17 meters tall with wooden levels and 7-meter walls 1.4-2 meters thick, it endured Vytautas's 1428 artillery bombardment—the first mass cannon siege in Russia—prompting 1430 reinforcements that thickened walls to 4.5 meters with portcullis gates.

As Moscow annexed Novgorod and Pskov in 1478-1510, its border role faded without further attacks, preserving its original form unlike rebuilt contemporaries; WWII occupation damaged the site minimally, leaving the Nikolskaya Church operational amid ruins now valued for medieval authenticity.