The article is intended to present the fate of the “Fourth Company of Lubawa”, a division of the January Uprising insurgents who, under the command of Jan Fryderyk Ewald Wandel, alias “Bruder”, crossed the border on the Działdówka river, between Prussia and the Kingdom of Poland, near the village of Przełęk, on 31 March 1864. On the same day, however, the insurgents suffered defeat by much more numerous Russian troops near Kęczew, already within the territory of the Kingdom of Poland. The article details the campaign of the combined troops of the insurgents from West Prussia and East Prussia, as well as the course of the eponymous skirmishes. Furthermore, the fates of several insurgents who were part of the “Fourth Lubavian Company” were established and described, and one of the fallen was identified.