Victor Emmanuel II allies with Prussia in…
1864 CE to 1875 CE
Finally, in 1870, as France abandons its garrisons in Rome during the disastrous Franco-Prussian War to keep the large Prussian Army at bay, the Italians rush to fill the power gap by taking over the Papal States.
Italian unification is completed and shortly afterward Italy's capital is moved to Rome.
Victor Emmanuel, Garibaldi, Cavour and Mazzini will be referred as Italy's Four Fathers of the Fatherland.