How has the Master of Paris prevented Baron Klaus Wulfenbach from taking over? (I haven't seen the map on a scale to know if its boundaries really are close to the Wulfenbach empire....)

The Master's stance ('Paris is mine; keep the peace or I will.') seems perfectly compatible with the Baron's ('Don't make me come over there.'). I expect that the Master never launched a war of aggression, so Klaus never felt the need suppress it. So long as Klaus is reasonably sure that the Master isn't in league with the Other, the enormous cost of taking Paris from a mega-spark like the Master probably isn't worth it. Klaus didn't take England either, for that matter. It's not all that different than what he did with Beetleburg, though he did at least nominally take that city.

It's unlikely that Klaus expanded the empire in an actual circle. More likely, he took over every neighbor who attacked him or was in league with the Other. The empire would have grown by fits and starts in various directions as he squashed each conflict. With no assault from Paris, Klaus never went there. YMMV. --DryBrook 21:33, 28 May 2009 (UTC)