>>95991895
It's rather doubtful the Empire, or really just Marianburg, has any Trading post cities* during the time period of TOW.
Due to being too focused on the centuries-long Civil War in the Empire itself
Of the two cannon Empire colonies in the Southlands, we have Leopoldheim, which hasn't been founded yet in the timeline, and Sudenburg, which doesn't show up on any TOW maps and isn't mentioned in the lore until after the Great War against Chaos.
which really just makes the justification for why weaker
*fantasy analogues to Portuguese or Spanish cities like Ceuta or Mazagão