The metal suits worn by knights during the Middle Ages were originally designed to protect against weapons such as swords.

The items are now housed in a museum built in a former castle for the knights of the Teutonic Order. Screengrab from Muzeum W Ostródzie's Facebook post History enthusiasts using metal detectors in ...

Screengrab from Muzeum W Ostródzie's Facebook post History enthusiasts using metal detectors ... upon three medieval weapons — including one possibly used to fight invading knights.