Daimyo longevity...

[DEB8]

Btw do you mean you think The Armory makes units vulnerable to faster fatigue in Winter? I would've sworn this is a trait specific to Naginata (Infantry) and Heavy Cavalry (both units require an Armory though).

Not the Armoury per se, just Gold level Armour, or so it appeared. My Naginata (Infantry) and Heavy Cavalry units did suffer somewhat more than the rest ; although all Cavalry units suffered really. Combined with the long march across the battlefield of course, it was lethal...