Medieval fortification

Beaumaris Castle in Wales was built in the late 13th century and is an example of concentric castles which developed in the late medieval period.
Badajoz
Castle of Topoľčany in Slovakia

Medieval fortification refers to military methods that cover the development of fortification construction and use in Europe, during the period roughly from the fall of the Western Roman Empire until the Renaissance. During this millennium, fortifications changed warfare and in turn were modified to suit new tactics, weapons, and siege techniques.