It ended in the defeat of the Polish armies of Lesser Poland.
In March 1241, after a successful winter campaign, in which Mongol forces captured and ransacked Sandomierz, Asiatic hordes entered Poland in full force.
The stronger one, probably with 15,000 warriors under Baidar and Orda Khan, headed westwards, defeating Poles in the Battle of Chmielnik on 18 March 1241.
The second army, with 10,000 warriors under Kadan (according to Jan Długosz) headed northwards, to the Land of Łęczyca and Kujawy.
After the battle, the Mongols ransacked central Poland for a few more days.