I have put a few links to pictures of medieval cannon in Wikimedia Commons below:
in the late medieval period many medieval castles did have a primitive type of cannon.
it looked plain
I dont knoww!
negros
ask yo mama
How the heck do you expect me to know?!
the same as now
How the heck do you expect me to know?!
It Looks Ancient and cold.
ask yo mama
medieval times? well
A see threw cannon ball(jelly inside) with tentacles