Vatican Obelisk

1500 BCE - 30 BCE

Egyptian, date uncertain; brought to Rome 37 CE; moved 1586

Egyptian Origin and Lack of Inscriptions

Originating from Heliopolis on the Nile, the obelisk is unique among Rome's major Egyptian monuments for being entirely devoid of original hieroglyphs or titles. While it later stood at the Forum Iulii in Alexandria, it remains uncertain whether the Egyptian inscriptions were intentionally erased before the monument was transported to Rome or if the shaft was never inscribed. This lack of traditional Egyptian text distinguishes it from the other twelve ancient obelisks currently located within the city.

Monument

Imperial Relocation to the Circus of Nero

Emperor Caligula ordered the obelisk shipped from Egypt to Rome in 40 AD. Upon arrival, it was erected at the center of the Circus of Nero, a site now largely occupied by Vatican City. The monument maintained this original Roman position for over 1,500 years, even as the circus fell into disuse and was eventually replaced by a necropolis. By the 16th century, it stood adjacent to the Old St. Peter's Basilica at the Rotonda di Sant'Andrea.

Religious Transformation and Symbolism

Pope Sixtus V intended the relocation as a symbolic triumph of Christianity over paganism. To formalize this transition, the obelisk was 'expiated' of its pagan associations and consecrated to the 'invincible cross.' Inscriptions added to the pedestal in 1586, composed by Cardinal Silvio Antoniano, explicitly describe the monument's move from 'impious reverence' to the 'threshold of the Apostles.' A large bronze cross was installed at the summit to replace the original ancient ornaments.

The Legend of the Golden Globe

Prior to its 1586 relocation, the obelisk was topped by an ancient bronze globe. Medieval legend suggested this sphere contained the cremated remains of Julius Caesar or Emperor Trajan. However, when the globe was removed during Fontana's work, no such ashes were found. The globe was subsequently presented to the city of Rome and moved through various locations, including the Marforio fountain and the Piazza del Campidoglio, before being housed in the Palazzo dei Conservatori in 1848.

The Search for the True Cross Relic

Following the installation of the bronze cross atop the obelisk on September 26, 1586, a belief persisted that Pope Sixtus V had placed a fragment of the True Cross within it. This association was reinforced by the granting of perpetual indulgences to those who prayed before the monument. However, during a later restoration of the cross, no such relic was discovered, suggesting the tradition was based on assumption rather than physical placement within the structure.

The 1586 Engineering Feat

In 1586, Pope Sixtus V commissioned architect Domenico Fontana to move the obelisk 260 meters to its current position in St. Peter's Square. This massive engineering undertaking required thirteen months of preparation and the coordinated labor of 800 men, 160 horses, and 45 winches. The actual relocation was completed in a single day on September 10, 1586, marking the first time an ancient obelisk was successfully moved in Rome during the modern era.

The 'Water on the Ropes' Incident

During the critical phase of the 1586 relocation, the heavy ropes supporting the obelisk began to stretch and threatened to snap under the immense tension. According to historical accounts, a sailor named Benedetto Bresca broke the mandated silence by shouting 'Acqua alle funi' ('Water on the ropes!'). This instruction to wet the hemp ropes caused them to shrink and tighten, providing the necessary strength to prevent a catastrophic failure and ensuring the monument was safely lowered and positioned.

Egyptian Origin and Lack of Inscriptions

Originating from Heliopolis on the Nile, the obelisk is unique among Rome's major Egyptian monuments for being entirely devoid of original hieroglyphs or titles. While it later stood at the Forum Iulii in Alexandria, it remains uncertain whether the Egyptian inscriptions were intentionally erased before the monument was transported to Rome or if the shaft was never inscribed. This lack of traditional Egyptian text distinguishes it from the other twelve ancient obelisks currently located within the city.

Physical Composition and Scale

The Vatican Obelisk is a monolithic structure carved from red granite, standing at a height of 25.3 meters. When combined with its pedestal—which features four bronze lions sculpted by Prospero Antichi—and the crowning cross, the entire monument reaches a total height of nearly 40 meters. Notably, it is the only ancient obelisk in Rome that has remained standing since its arrival in the city, never having fallen or been toppled throughout the medieval period.