Constantine Laskaris
13th-century Byzantine emperor
Constantine Laskaris (Greek: Κωνσταντίνος Κομνηνὸς Λάσκαρις, romanized: Kōnstantīnos Komnēnós Láskaris) may have been Byzantine Emperor for a few months from 1204 to early 1205. He is sometimes called "Constantine XI", a numeral now usually reserved for Constantine Palaiologos.
Early years
Constantine Laskaris was born of a noble but not particularly renowned Byzantine family. Virtually nothing is known of him prior to the events of the Fourth Crusade. He found favour after his brother Theodore married into the imperial family, becoming the son-in-law of Emperor Alexios III Angelos.
During the first siege of Constantinople by the Crusaders in 1203 he was given command of the best body of troops available and led the Roman defenders on sorties against the entrenched Crusaders. None were successful in their goal of lifting the siege, and finally Constantine was ordered to attack the Burgundians who were on guard at the time.
The Romans issued forth from the city, but were soon driven back to the gates, notwithstanding the stones that the defenders on the walls threw down onto the advancing Crusaders. Constantine himself was captured whilst mounted on his horse by William of Neuilly and probably kept for ransom, which was the usual practice of the times. At some point he was released, as he was soon swept up in the events of the second siege of Constantinople in 1204.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 19, 2026. The linked authority identifier is Q37092. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1204, 1205 and 1203.
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This entry incorporates text from “Constantine Laskaris” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.