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".
Italy
The Holy See, the episcopal jurisdiction of Rome, contains the central government of the Roman Catholic Church. It is recognised by other subjects of international law as a sovereign entity, headed by the Pope, who is also the Bishop of Rome, with which diplomatic relations can be maintained. Often incorrectly referred to as "the Vatican", the Holy See is not the same entity as the Vatican City State, which came into existence only in 1929.