Lateran Palace — Wikipedia

The Apostolic Palace of the Lateran (Latin: Palatium Apostolicum Lateranense), informally the Lateran Palace (Latin: Palatium Lateranense; Italian: Palazzo del Laterano), is an ancient palace of the Roman Empire and later the main papal residence in Rome. Located on Saint John's Square in Lateran on the Caelian Hill, the palace is adjacent to the Archbasilica of Saint John Lateran, the cathedral church of Rome. The wealthy Lateran (Laterani) family held the palace estate during the Roman Empire, and the estate eventually came into the hands of the Emperor Constantine the Great who gifted...