What European powers attended the Congress of Vienna?

- *Austria*

- *France*

- *Great Britain*

- *Prussia*

- *Russia*

- *Spain*

- *Sweden-Norway*

- *Portugal*

- *Kingdom of Sardinia*

- *Naples and Sicily*

- *Papal States*

- *Grand Duchy of Tuscany*

- *Duchy of Parma*

- *Duchy of Modena*

- *Duchy of Lucca*

- *Republic of Ragusa*

- *Swiss Confederation*