Stump the German

[L Verge]

I detected a definite Hispanic influence in the mosaic design, so my first guess would be, like AussieMick's, somewhere in Cuba, Haiti, or even Mexico -- leaning more to the sugar plantation regions south of the U.S., which served to spur on slavery as well as the plans of the Knights of the Golden Curcle?

Hold the presses! I just re-read your question and think that you may want an original source in your comment about turning from Indian laborers to African slaves. If so, can we think Spain as the original source?

No idea as to the designer.