Vatican City
The name was first used in the Lateran Treaty, signed on 11 February 1929, which established the modern city-state. The name is taken from Vatican Hill, the geographic location of the state. "Vatican" is derived from the name of an Etruscan settlement, "Vatica" or "Vaticum" meaning garden, located in the general area the Romans called "vaticanus ager", "Vatican territory".
Vatican during the Savoyard era (1870–1929)
Rome was declared Capital of Italy in March 1861, when the first Italian Parliament met in the kingdom's old capital Turin in Piemonte. However, the Italian Government could not take possession of its capital because Napoleon III kept a French garrison in Rome protecting Pope Pius IX. The opportunity to eliminate the last vestige of the Papal States came when the Franco-Prussian War began in July 1870. Emperor Napoleon III had to recall his garrison from Rome for France's own defence and could no longer protect the pope. Following the collapse of the Second French Empire at the battle of Sedan, widespread public demonstrations demanded that the Italian Government take Rome. King Victor Emmanuel II sent Count Gustavo Ponza di San Martino to Pius IX with a personal letter offering a face-saving proposal that would have allowed the peaceful entry of the Italian Army into Rome, under the guise of offering protection to the pope.