I guess Prussian but I am not sure.
bummer !
Warsaw:
- was Prussian from 1795 to 1806,
- 1806 - 1812 Polish/French
- 1812 - 1831 Russian with a degree of autonomy
-1831 - 1915 Russian
- 1915 - 1918 German
- 1918 - 1939 Polish
- 1939 - 1945 German
- 1945 - 1989 Soviet/Polish
That just from the top of my head.