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".
Palatine Guard
The Palatine Guard () was a military unit of the Vatican. It was formed in 1850 by Pope Pius IX, who ordered that the two militia units of the Papal States be amalgamated. The corps was formed as an infantry unit, and took part in watch-keeping in Rome. The only occasion on which it saw active service was during the token resistance on 20 September 1870 to the occupation of Rome by Italian government troops.