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".
Monarchies in Europe
Differently from the Holy See, in existence for almost two thousand years, the Vatican City was not a sovereign state until the 20th century. In the 19th century the annexation of the Papal States by the Kingdom of Sardinia, and the subsequent establishment of the Kingdom of Italy, was not recognized by the Vatican. However, by the Lateran treaty of 1929, the Kingdom of Italy recognized Vatican City as an independent state, and "vice versa". Since then, the elected monarch of the Vatican City state has been the current pope. The pope still officially carries the title "King of the Ecclesiastical State" (in Latin: Rex Status Ecclesiæ).