This 18 pounder cannon sits on the waterfront in Collioure. It was cast in 1812 as a cannon for the coastal defence force, and thus was intended to keep the Royal Navy at bay. I can't find any references to Collioure itself being attacked during the Napoleonic period, but batteries at the adjacent port of Port Vendres were attacked by the Royal Navy in 1808.
I get the feeling you like your adopted country, I would like to spend a prolonged period of time there myself. I was born on the 14th of July and for some reason France celebrates me annually....