John XI of Constantinople

Papers. 1993, 47: 249 （英语）.  John Haldon. Strategies of Defence, Problems of Security: the Garrisons of Constantinople in the Middle Byzantine Period

（原始内容存档于2021-08-16）.  Matthews, John. The Notitia Urbis Constantinopolitanae. Grig, Lucy; Kelly, Gavin (编). Two Romes: Rome and Constantinople in late Antiquity. Oxford:

Konstantinoupoles " ( Constantinople has Fallen. Chronicle of the Fall of Constantinople : Brief History of Events in Constantinople during the Period 1440–1453

Conquest of Constantinople, 232 D. E. Queller, The Fourth Crusade The Conquest of Constantinople, 17 Robert de Clari, La Prise de Constantinople, xi–xii,

伊斯坦布尔历史年表 Pliny the Elder, book IV, chapter XI: （页面存档备份，存于互联网档案馆） Janin, Raymond. Constantinople byzantine. Paris: Institut Français d'Études Byzantines