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John IV Laskaris
Sign in to saveAlso known as John IV, Emperor of Constantinople, John IV Doukas Laskaris
13th-century emperor of Nicaea
OverviewAI-generated
John IV Laskaris (1250–1305) was a male ruler and Byzantine emperor belonging to the Laskaris family. Born in İznik, he was the son of Theodore II Laskaris and Elena Asenina of Bulgaria. His siblings included Eudoxia Laskarina and Irene Doukaina Laskarina. As a citizen of the Byzantine Empire, he held the noble title of emperor and adhered to the Eastern Orthodox faith. He suffered from blindness during his life.
His name in the native language is Ιωάννης Δ΄ Λάσκαρις. He is described in sources such as the Brockhaus and Efron Encyclopedic Dictionary, the Encyclopædia Britannica 11th edition, and the New International Encyclopedia.
Synthesized by Vinony from 22 facts across 4 sources: Wikidata, Crossref, MusicBrainz, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.
Key facts
- Reign
- 16 August 1258 – 25 December 1261
- Predecessor
- Theodore II Doukas Laskaris
- Successor
- Michael VIII Palaiologos
- Born
- 25 December 1250
- Died
- c. 1305
via Wikipedia infobox
Wikidata facts
- Instance of
- human
- Given name
- John
- Gender
- male
- Citizenship
- Byzantine Empire
- Place of birth
- İznik
- Father
- Theodore II Laskaris
- Occupation
- ruler
- Position held
- Byzantine emperor
- Religion
- Eastern Orthodoxy
- Family
- Laskaris
- Noble title
- emperor
- Image
- John IV Laskaris miniature.jpg
Show 6 more facts
- date of birth
- 1250-12-25
- date of death
- 1305-01-01
- medical condition
- blindness
- Commons category
- Ioannes IV Laskaris
- name in native language
- Ιωάννης Δ΄ Λάσκαρις
- described by source
- New International Encyclopedia
Sources (2)
via Wikidata · CC0
~6 min read
Encyclopedic overview
HouseLaskaris/Vatatzes FatherTheodore II Doukas Laskaris MotherElena Asenina of Bulgaria ReligionEastern Orthodoxy
John IV Doukas Laskaris (or Ducas Lascaris) (Greek: Ἰωάννης Δούκας Λάσκαρις, romanized: Iōánnēs Doúkās Láskaris; December 25, 1250 – c. 1305) was the fourth emperor of the Nicaean Empire from August 16, 1258 to December 25, 1261, one of the Greek successor states formed after the Sack of Constantinople by the Roman Catholics during the Fourth Crusade. He was the last emperor from the prominent Laskarid dynasty and the last to only rule Nicaea before the Reconquest of Constantinople by his successor in 1261.
Excerpted from Wikipedia’s “John IV Laskaris” article, available under the CC BY-SA 4.0 licence.