
Second Mongol invasion of Poland
The second Mongol invasion of Poland was carried out by general Boroldai (Burundai) in 1259–1260. During this invasion the cities of Sandomierz, Kraków, Lublin, Zawichost, and Bytom were sacked by Mongols for the second time.
Painting:
Martyrdom of Sadok and 48 Dominican martyrs of Sandomierz during the Second Mongol invasion of Poland.
Reference:
http://www.historynet.com/mongol-invasions-battle-of-liegnitz.htm
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