←  Holy Roman Empire
|
 German Confederation →  North German Confederation → German Empire →
|
Treaties concluded or ratified by the 
Grand Duchy of Saxe-Weimar-Eisenach (1809–1918).
| ← Holy Roman Empire
|
German Confederation → North German Confederation → German Empire →
|
Treaties concluded or ratified by the Grand Duchy of Saxe-Weimar-Eisenach (1809–1918).