Projecting corner turret
These are particularly notable in the castles of North Wales
Featured in the song "The British Grenadiers"
A "toothed" upper edge to a parapet wall.
see Crenel & Merlon
Examples: Clifford's Tower - York, Arundel Castle
A stone throwing engine, powered by teams of soldiers pulling on ropes
A heavy stone throwing engine, powered by a large counterweight
Roman name for a Mangonel, literally a "wild ass"
A light stone throwing engine, powered by a skein of twisted rope.