Supposedly used by the body guard of Henry VIII, it was basically a wooden shield with a hole for a pistol to stick through.
With teeth on the sides meant for catching opponents swords, one flick of the wrist was enough to split them in half.
Spring Loaded Triple Dagger
Used by fencers in the middle ages, when a button was pressed, two extra blades would flip out.
Sometimes called the holy water sprinkler, this referred to a series of spiked weapons that were often used by peasants…although there were upscale versions as well.
Able to launch things over half a mile, the advent of these super powered catapults made castles slightly less appealing.