A.E.I.O.U. and Me

The Habsburg pacifist run (Werner of Aargau 1066, or Albrecht 1178): the Archduchy of Austria, five-plus Grand Weddings, and NO wars where YOU are the primary aggressor - defensive wars, revolts against you, crusades and allies' calls are all fine. The Archduchy decision needs a strong hook on your liege, and Grand Weddings themselves can grant exactly that (tier-1 Activities legacy raises the odds; schedule weddings when the Kaiser is free to attend). Land acquisition without war: papal duchy claims, petitioning your liege, marry-and-murder inheritance into Austria, fabricated claims pressed by OTHERS. Known wrinkle: there are "In Review" reports of non-unlocks despite clean runs, with a save-edit workaround (deleting the player_declared_war flag) - so be extra careful never to be the aggressor, even once, even briefly.