Seriously though, I've opened those old gangrenous wounds surrounding the issue of guns in TES to sincerely broach the idea of siege weapons (ballistae, trebuchet, etc.), to which the name Gunnhildr is actually relevant (no that wasn't just a bad attempt at trolling, my thread has a unified purpose). You see, relatively recent etymological research posits that the word 'gun' is actually short for, you guessed it, Gunnhildr. Then, just as now, man felt the need to give his city-leveling weapons ridiculous names. These original guns were of course torque or counterweight driven weapons; only later was the name applied to cannons.
So yeah, linguistics lesson aside, there's a civil war going on in Skyrim. Siege weapons would be pretty swank, if a tad incongruous.