Thanks to that Lubin was one of the most fortified towns in Silesia at the time and managed to resist both Hussite invasions in 1428 and 1431. At the end of the 14th century a pedestrian church gate was built in the southern part of the walls, which led from the church square to the cemetery outside the walls. The gate was secured by a small foregate which was additionally strengthened by a square tower next to it, built in the late fifteenth century and transformed into a high campanile - a bell tower above the temple, connected to it by a suspended brick arcade.