Work / monument · infrastructure

Leonine Wall

848–852 · 9th century · Also known as Leonine City

The Leonine Wall is a defensive wall built around the Vatican hill and Saint Peter's Basilica by Pope Leo IV between 848 and 852, after Muslim raiders sacked the basilica in 846. The enclosed district became known as the Leonine City. Parts of the wall survive within Vatican City, including the fortified corridor later built on it to link the Vatican with Castel Sant'Angelo.

Leonine Wall — Image: Public domain · Wikimedia Commons

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Papal StatesMilitary

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Cite this entry

APA: The Epoch Institute. (2026). Leonine Wall. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/leonine-wall
MLA: “Leonine Wall.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/leonine-wall. Accessed .
Chicago: The Epoch Institute. “Leonine Wall.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/leonine-wall.
Harvard: The Epoch Institute (2026) ‘Leonine Wall’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/leonine-wall (Accessed: ).

Last reviewed October 2026Random entry ↻