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