|Comune di Gerano|
|Metropolitan city||Rome (RM)|
|• Mayor||Danilo Felici|
|• Total||10.09 km2 (3.90 sq mi)|
|Elevation||502 m (1,647 ft)|
(31 December 2019)
|• Density||120/km2 (320/sq mi)|
|Time zone||UTC+1 (CET)|
|• Summer (DST)||UTC+2 (CEST)|
Gerano is a comune (municipality) in the Metropolitan City of Rome in the Italian region of Latium, located about 40 kilometres (25 miles) east of Rome.
The year of foundation of Gerano is unknown; however, it is known that in 1005 it constituted a castrum. In the Middle Ages, due to its strategic and economic importance, as the capital of Massa Giovenzana (replacing the more ancient Trellanum), for a while, Pope Gregory VII was interested in it, who in 1077 confirmed Gerano to be divided between the diocese of Tivoli and the abbot of Subiaco.