I've just been to France and I got taunted outside a French castle. But it was a French skinhead not a medieval defender.
Did he fart in your general direction and suggest your mother was a hamster and your father smelled of elderberries?
Or just yell.."Merde! Ferk erf, rosbifs!"
It was something very much along the lines of your second suggestion but I registered a complaint.
I also blew him a raspberry and slapped my own head which confused him somewhat.