Map of Europe circa 1815, following the Congress of Vienna
This file was derived from: Blank map of Europe (with disputed regions).svg: Data:

German Confederation/Deutscher Bund: Deutscher Bund.svg by user Ziegelbrenner
Italian states/Italien: Italy unification 1815 1870.jpg by William Shepherd. Historical Atlas. New York: Henry Holt and Company, 1911.
Blank map of Europe (with disputed regions).svg: maix¿?
derivative work: Alphathon /'æɫfə.θɒn/ (talk)