Poland was fragmented at the time however, do not forget that the Mongols launched an unsuccessful raid in 1287, led by Talabuga and Nogai Khan. Lublin, Mazovia, Sandomierz and Sieradz were successfully raided, but the Mongols were defeated at Kraków.  The force sent was not sufficient to meet the full Polish army. It burned a few small towns, and fled when the Polish army was mustered.  The Poles stopped the advance of The Golden Horde at Krakow and the Turks under General Sobieski in 1643 at the Battle of Vienna.  That is twice the Poles stopped the west from being overrun by Barbarians...and don't you forget it! 
 OG from LA