# Konstantinos Doukas

> Constantine Doukas or Ducas was Byzantine junior emperor from 1074 to 1078, and again from 1081 to 1087. He was born to Emperor Michael VII Doukas and Empress Maria of Alania in about 1074, and elevated to junior emperor probably in the same year. He was junior emperor until 1078, when Michael VII was replaced by Nikephoros III Botaneiates. Because Constantine was not made junior emperor under Nikephoros III, his betrothal to Olympias, the daughter of Robert Guiscard, was broken, which Robert Guiscard used as a pretext to invade the Byzantine Empire. John Doukas forced Nikephoros to abdicate in favor of Alexios I Komnenos in 1081, and shortly afterwards Alexios elevated Constantine to junior emperor. Constantine married Alexios's daughter Anna Komnene, and remained junior emperor until 1087, when Alexios had a son, John II Komnenos. Constantine died in c. 1095.

*Byzantine co-emperor*

**Canonical URL:** https://fame.am/person/konstantinos-doukas

## Identity
- **Profile type:** Historical Figure ([Wikidata](https://www.wikidata.org/entity/Q2798645))
- **Category:** Historical Figures
- **Born:** 1074
- **Died:** 1095
- **Status:** deceased
- **Gender:** male

## Fame
- **Popularity score:** 50.3 / 100
- **Momentum:** 0.0 / 100  (trend: FALLING)
- **Historical depth:** 18.9 / 100
- **Attention shift:** 0.0 / 100
- **Source confidence:** 60.0 / 100
- **Profile completeness:** 60.0 / 100

## Sources
- [君士坦丁·杜卡斯 (共治皇帝)](https://zh.wikipedia.org/wiki/%E5%90%9B%E5%A3%AB%E5%9D%A6%E4%B8%81%C2%B7%E6%9D%9C%E5%8D%A1%E6%96%AF_(%E5%85%B1%E6%B2%BB%E7%9A%87%E5%B8%9D))
- [قسطنطين دوكاس (قسيم الملك)](https://ar.wikipedia.org/wiki/%D9%82%D8%B3%D8%B7%D9%86%D8%B7%D9%8A%D9%86_%D8%AF%D9%88%D9%83%D8%A7%D8%B3_(%D9%82%D8%B3%D9%8A%D9%85_%D8%A7%D9%84%D9%85%D9%84%D9%83))
- [قسطنطين دوكاس](https://arz.wikipedia.org/wiki/%D9%82%D8%B3%D8%B7%D9%86%D8%B7%D9%8A%D9%86_%D8%AF%D9%88%D9%83%D8%A7%D8%B3)
- [Константин Дука Багренородни](https://bg.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B8%D0%BD_%D0%94%D1%83%D0%BA%D0%B0_%D0%91%D0%B0%D0%B3%D1%80%D0%B5%D0%BD%D0%BE%D1%80%D0%BE%D0%B4%D0%BD%D0%B8)
- [Constantí Ducas (coemperador)](https://ca.wikipedia.org/wiki/Constant%C3%AD_Ducas_(coemperador))
- [Konstantin Dukas Porphyrogennetos](https://de.wikipedia.org/wiki/Konstantin_Dukas_Porphyrogennetos)
- [Κωνσταντίνος Δούκας (γιος Μιχαήλ Ζ΄)](https://el.wikipedia.org/wiki/%CE%9A%CF%89%CE%BD%CF%83%CF%84%CE%B1%CE%BD%CF%84%CE%AF%CE%BD%CE%BF%CF%82_%CE%94%CE%BF%CF%8D%CE%BA%CE%B1%CF%82_(%CE%B3%CE%B9%CE%BF%CF%82_%CE%9C%CE%B9%CF%87%CE%B1%CE%AE%CE%BB_%CE%96%CE%84))
- [Constantine Doukas (co-emperor)](https://en.wikipedia.org/wiki/Constantine_Doukas_(co-emperor))
- [Constantino Ducas (coemperador)](https://es.wikipedia.org/wiki/Constantino_Ducas_(coemperador))
- [Konstantino Dukas](https://eu.wikipedia.org/wiki/Konstantino_Dukas)
- [Konstantinos Dukas](https://fi.wikipedia.org/wiki/Konstantinos_Dukas)
- [Constantin Doukas](https://fr.wikipedia.org/wiki/Constantin_Doukas)
- [Costantino Ducas](https://it.wikipedia.org/wiki/Costantino_Ducas)
- [콘스탄티누스 두카스 (공동 황제)](https://ko.wikipedia.org/wiki/%EC%BD%98%EC%8A%A4%ED%83%84%ED%8B%B0%EB%88%84%EC%8A%A4_%EB%91%90%EC%B9%B4%EC%8A%A4_(%EA%B3%B5%EB%8F%99_%ED%99%A9%EC%A0%9C))
- [Константин Дука (син на Михаил VII)](https://mk.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B8%D0%BD_%D0%94%D1%83%D0%BA%D0%B0_(%D1%81%D0%B8%D0%BD_%D0%BD%D0%B0_%D0%9C%D0%B8%D1%85%D0%B0%D0%B8%D0%BB_VII))
- [Constantijn Doukas Porphyrogennetos](https://nl.wikipedia.org/wiki/Constantijn_Doukas_Porphyrogennetos)
- [Konstantyn Dukas II (współcesarz)](https://pl.wikipedia.org/wiki/Konstantyn_Dukas_II_(wsp%C3%B3%C5%82cesarz))
- [Constantino Ducas (coimperador)](https://pt.wikipedia.org/wiki/Constantino_Ducas_(coimperador))
- [Constantin al II-lea Ducas](https://ro.wikipedia.org/wiki/Constantin_al_II-lea_Ducas)
- [Константин Дука (сын Михаила VII)](https://ru.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B8%D0%BD_%D0%94%D1%83%D0%BA%D0%B0_(%D1%81%D1%8B%D0%BD_%D0%9C%D0%B8%D1%85%D0%B0%D0%B8%D0%BB%D0%B0_VII))
- [Константин Дука (син Михаила VII)](https://sr.wikipedia.org/wiki/%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B8%D0%BD_%D0%94%D1%83%D0%BA%D0%B0_(%D1%81%D0%B8%D0%BD_%D0%9C%D0%B8%D1%85%D0%B0%D0%B8%D0%BB%D0%B0_VII))
- [Konstantinos (VII. Mihail'in oğlu)](https://tr.wikipedia.org/wiki/Konstantinos_(VII._Mihail'in_o%C4%9Flu))
- [Костянтин Дука (син Михайла VII)](https://uk.wikipedia.org/wiki/%D0%9A%D0%BE%D1%81%D1%82%D1%8F%D0%BD%D1%82%D0%B8%D0%BD_%D0%94%D1%83%D0%BA%D0%B0_(%D1%81%D0%B8%D0%BD_%D0%9C%D0%B8%D1%85%D0%B0%D0%B9%D0%BB%D0%B0_VII))
- [Wikidata](https://www.wikidata.org/wiki/Q727828)

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