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Theodosian Walls of Constantinople

Under the praetorian prefect Anthemius, who governed for the child emperor Theodosius II, Constantinople received a new land wall 1.5–2 km west of Constantine’s, completed by 413. Strengthened with a lower outer wall and a moat, the Theodosian Walls remained the city’s main defence until the Ottoman conquest of 1453.

Date
between 404 and 408 – 413start: exact date unknown: an interval is given; end: year known · duration: ≈ 7 years
Place
Theodosian Walls (land walls of Constantinople)today: Fatih, Istanbul, Turkey · Balkans and Anatolia
Participants
Theodosius II, Arcadius, Anthemius (praetorian prefect), Byzantine Empire
Threads
Europe in the Roman age (1st–5th c.)
Also known as
Theodosian Walls; Land Walls of Constantinople; Walls of Constantinople; Феодосиевы стены; Стены Константинополя; Стены Феодосия

By the early 5th century Constantinople had outgrown the wall of its founder. A new wall across the peninsula, from the Sea of Marmara to the Blachernae quarter near the Golden Horn, was raised under Anthemius, praetorian prefect of the East, who led the government during the minority of Theodosius II. A law of 4 April 413 addressed to him calls the new wall a completed work and assigns its towers to the owners of the land it crossed, who were to keep them in repair. An inscription discovered in 1993 records nine years of work, which puts the start around 404/405, still under Arcadius; other accounts date the building to 408–413. The wall almost doubled the area of the city, and J. B. Bury called Anthemius “in a sense, the second founder of Constantinople”.

This first line is the present inner wall, 4.5–6 m thick and 12 m high, with 96 towers. Earthquakes damaged it in 437 and especially in 447, when 57 towers fell just as Attila’s Huns were ravaging the Balkans; the prefect Constantine had the walls restored within 60 days, employing the circus factions, the Blues and the Greens. Most scholars date the lower outer wall and the moat, more than 20 m wide, to this rebuilding, although they may have belonged to the original design. In their present state the land walls stretch for about 5.7 km.

The walls withstood the sieges of the Avars and Persians in 626, of the Arabs, the Rus’ and the Bulgars, and were still the city’s chief defence when the Ottomans took Constantinople in 1453.

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Sources

  1. Wikipedia (English): Walls of Constantinople
  2. Wikipedia (English): Anthemius (praetorian prefect)
  3. Wikipedia (English): 447 Constantinople earthquake
  4. Wikipedia (Russian): Стены Константинополя
  5. Wikipedia (Russian): Антемий (префект)
  6. Codex Theodosianus, XV.1.51 (4 April 413)
  7. Van Millingen A. Byzantine Constantinople: The Walls of the City and Adjoining Historical Sites. — London: John Murray, 1899.
  8. Bardill J. Brickstamps of Constantinople. — Oxford: Oxford University Press, 2004.
  9. Asutay-Effenberger N. Die Landmauer von Konstantinopel-İstanbul: historisch-topographische und baugeschichtliche Untersuchungen. — Berlin; New York: De Gruyter, 2007.