First, the demise without male heirs of Frederick VII of Denmark led to the Second War of Schleswig in 1864. Second, the unification of Italy supplied Prussia an ally against Austria within the Austro-Prussian War of 1866. Finally, France-fearing Hohenzollern encirclement-declared struggle on Prussia in 1870, resulting within the Franco-Prussian War. On 18 November 1863, he signed the Danish November Constitution which replaced The Law of Sjælland and The Law of Jutland, which meant the brand n...