When I first saw this on Saturday, I was bewildered, "why on earth would Prussia have a consulate here?" Then when I thought more it, it made perfect sense. Maximilian was a Habsburg, the French were meddling in Mexican affairs (ruled at that time by Louis Napoleon or, if you prefer, Napoleon III).

It was tough to get ahead of Otto von Bismarck, so hence, Prussia must have had eyes anywhere Prussia's rivals had designs.

This is now a bar.