nov 3, 812 - Siege of Marcianopolis of 812

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Krum returned Marcianopolis in 812 and laid siege to the city, forcing Nikephoros to send many thousands of his troops out of the city on the Odessos river, and then down the coast to Constantinople to reduce the number of mouths he had to feed. The siege lasted all year, but Krum was forced to break off when winter came again, as the countryside still could not support his forces year-round. The Romans took this opportunity to withdraw back to Hadrianopolis for the winter.

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