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Title: Janiculum  
Author: World Heritage Encyclopedia
Language: English
Subject: Aqua Traiana, Francesco Daverio, American University of Rome, Pontifical Urban University, Janus
Collection: Hills of Rome, Rome R. Xiii Trastevere
Publisher: World Heritage Encyclopedia


The Janiculum Hill
Hill of Rome
Latin name Janiculum
Italian name Gianicolo
Rione Trastevere
Buildings Academia de España in Rome, American Academy in Rome,
Acqua Paola, Water Mill (site)
Churches San Pietro in Montorio, San Pancrazio
Events 1849 battle
Ancient Roman religion augurs
Mythological figures Janus
The Janiculum Hill seen from NE. At lower left, the church of San Pietro in Montorio. At lower center, the Academia de España in Rome. At middle right, the Acqua Paola. At top center, the roof of the American Academy in Rome.

The Janiculum (Italian: Gianicolo, pronounced ) is a hill in western Rome, Italy. Although the second-tallest hill (the tallest being Monte Mario) in the contemporary city of Rome, the Janiculum does not figure among the proverbial Seven Hills of Rome, being west of the Tiber and outside the boundaries of the ancient city.


  • Sights 1
  • History 2
    • Ancient history and mythology 2.1
    • The water mills 2.2
    • 19th century to present 2.3
  • See also 3
  • References 4
  • External links 5


The Janiculum is one of the best locations in Rome for a scenic view of central Rome with its domes and bell towers. Other sights on the Janiculum include the church of San Pietro in Montorio, on what was formerly thought to be the site of St Peter's crucifixion; a small shrine known as the Tempietto, designed by Donato Bramante, marks the supposed site of Peter's death. The Janiculum also houses a Baroque fountain built by Pope Paul V in the late 17th century, the Fontana dell'Acqua Paola, and several foreign research institutions, including the American Academy in Rome and the Spanish Academy in Rome. The Hill is also the location of The American University of Rome, Pontifical Urban University, and Pontifical North American College, as well as the Orto Botanico dell'Università di Roma "La Sapienza" and the Palazzo Montorio, residence of the Ambassadors of Spain.


Ancient history and mythology

The Janiculum was a center for the cult of the god Janus: its position overlooking the city made it a good place for augurs to observe the auspices.

In Roman mythology, Janiculum is the name of an ancient town founded by the god Janus (the two-faced god of beginnings). In Book VIII of the Aeneid by Virgil (Publius Vergilius Maro), King Evander shows Aeneas (the Trojan hero of this epic poem) the ruins of Saturnia and Janiculum on the Capitoline Hill near the Arcadian city of Pallanteum (the future site of Rome) (see line 473, Bk. 8). Virgil uses these ruins to stress the significance of the Capitoline Hill as the religious center of Rome.

According to Livy, the Janiculum was incorporated into ancient Rome during the time of king Ancus Marcius to prevent an enemy from occupying it. It was fortified by a wall, and a bridge was built across the Tiber to join it to the rest of the city.[1]

During the war between Rome and Clusium in 508 BC, it is said that the forces of Lars Porsena occupied the Janiculum and laid siege to Rome.[2]

The water mills

The Aurelian Walls were continued up the hill by the emperor Aurelian (reigned AD 270–275) to include the water mills used to grind grain to provide bread flour for the city. The mills were supplied from an aqueduct, where it plunged down a steep hill. Thus the site resembles Barbegal, although excavations in the late 1990s suggest that they may have been undershot rather than overshot in design. The mills were in use until AD 537, when the Goths besieging the city cut off their water supply. But they were later restored and may have remained in operation until at least the time of Pope Gregory IV (827–844).[3]

19th century to present

The Janiculum is the site of a battle in 1849 between the forces of Garibaldi, defending the revolutionary Roman Republic against French forces, who were fighting to restore the temporal power of the Pope over Rome. Several monuments to Garibaldi and to the fallen in the wars of Italian independence are on the Janiculum.

Daily at noon, a cannon fires once from the Janiculum in the direction of the Tiber as a time signal. This tradition goes back to December 1847, when the cannon of the Castel Sant'Angelo gave the sign to the surrounding belltowers to start ringing at midday. In 1904, the ritual was transferred to the Janiculum and continued until 1939. On 21 April 1959, popular appeal convinced the Commune of Rome to resume the tradition after a twenty-year interruption.

The hill is featured in the third section of Ottorino Respighi's famous orchestral piece The Pines of Rome.

See also


  1. ^ Livy, Ab urbe condita, 1:33
  2. ^ Livy, Ab urbe condita, 2.9–15
  3. ^ Örjan Wikander, 'Water-mills in Ancient Rome' Opuscula Romana XII (1979), 13–36.

External links

  • Media related to at Wikimedia Commons
  • The Janiculum at Lacus Curtius
  • Roman Bookshelf – The Pauline Fountain (Janiculum) – views from the 18th and 19th century
  • Recent excavations of the mills
  • Passegiata del Gianicolo (in Italian)

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