The Battle of Iłża, one of many clashes of the January Uprising, took place on January 17, 1864, near the town of Iłża, which at that time belonged to Russian-controlled Congress Poland. A party of 830 Polish rebels, commanded by , clashed with a 400-strong detachment of the Imperial Russian Army. Poles lost 5 men, while Russian losses were much higher. The battle of Iłża was commemorated on Warsaw's Tomb of the Unknown Soldier, with the inscription “IłŻA 17 I 1864".