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Euphrosyne Doukaina Kamatera

1155 – 1211

Wife of the Byzantine Emperor Alexios III Angelos

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About Euphrosyne Doukaina Kamatera

Lived 1155 – 1211 (aged 55–56). Euphrosyne Doukaina Kamatera was a Byzantine.

Euphrosyne Doukaina Kamaterina or better Kamatera (, or Καματηρά [Kamatirá], – 1211) was a Byzantine Empress by marriage to the Byzantine Emperor Alexios III Angelos.

Euphrosyne was the daughter of Andronikos Doukas Kamateros, a high-ranking official who held the titles of megas droungarios and pansebastos and his wife, an unknown Kantakouzene. She was related to the Emperor Constantine X and Irene Doukaina, empress of Alexios I Komnenos. Both of her brothers had rebelled against Andronikos I Komnenos; one was imprisoned and the other was blinded.

Life Euphrosyne married Alexios Angelos, the older brother of the future Emperor Isaac II Angelos in c. 1169 CE. Euphrosyne took control of the palace and quelled the opposition herself, securing the accession of her husband to the throne by wholesale bribery.

Euphrosyne was recognised as the true power behind the throne. Intelligent, determined, skilled in communication and organization, she had a talent for politics, and virtually ruled the Empire in the name of Alexios III, who had a reputation for being concerned primarily with pleasure and idle pursuits. She issued commands herself and even altered Alexios' decrees when it suited her, and secured the recall of the capable minister Constantine Mesopotamites.

Euphrosyne and Alexios were criticized for their love of finery and the enrichment of their relatives at state expense. Her own brother, Basil Kamateros, and her son-in-law, Andronikos Kontostephanos, possibly driven by anger at her apparent curtailing of overall familial power, accused Euphrosyne of adultery with one of her ministers, a nobleman named Vatatzes.

In 1203, faced with the Fourth Crusade and the return of his nephew, Alexios IV Angelos, Alexios III fled Constantinople with a magnificent treasure and some female relatives, including his daughter Irene. Euphrosyne was left behind and was immediately imprisoned by the new regime. Alexios IV was soon strangled by Alexios Doukas Mourtzouphlos, the lover of Euphrosyne's daughter Eudokia, who then proclaimed himself emperor as Alexios V. In April 1204 Euphrosyne fled the city along with her daughter and Alexios V, and they made their way to Mosynopolis, where Euphrosyne's husband Alexios III had taken refuge. Alexios III had Alexios V blinded and abandoned to the crusaders, who had him executed.

Euphrosyne and Alexios III fled across Greece to Thessalonica and Corinth, but were finally captured by Boniface of Montferrat and imprisoned. In 1209 or 1210 they were ransomed by their cousin Michael I of Epirus, and Euphrosyne spent the remainder of her life in Arta. She died in 1210 or 1211.

Family By her husband, Alexios III Angelos, Euphrosyne had three daughters: Irene Angelina, who married (1) Andronikos Kontostephanos; (2) Alexios Palaiologos, by whom she was the grandmother of Emperor Michael VIII Palaiologos. Anna Angelina, who married (1) the sebastokratōr Isaac Komnenos, great-nephew of Emperor Manuel I Komnenos; (2) Emperor Theodore I Laskaris of Nicaea. Eudokia Angelina, who married (1) King Stefan I Prvovenčani of Serbia; (2) Emperor Alexios V Doukas; (3) Leo Sgouros, ruler of Corinth.

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Important facts

Born
1155
Birth century
Died
1211
Nationality
Positions held
Byzantine empress
Also known as
Euphrosyne Doukaina Kamaterina

Family & relationships

Spouse
Alexios III Angelos
Child
Anna Angelina
Child
Eudocia Angelina
Parent
Andronikos Doukas Kamateros

People in Euphrosyne Doukaina Kamatera's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Euphrosyne Doukaina Kamatera's

Frequently asked questions

Who was Euphrosyne Doukaina Kamatera?

Wife of the Byzantine Emperor Alexios III Angelos

When was Euphrosyne Doukaina Kamatera born?

Euphrosyne Doukaina Kamatera was born in 1155.

When did Euphrosyne Doukaina Kamatera die?

Euphrosyne Doukaina Kamatera died in 1211.

What nationality was Euphrosyne Doukaina Kamatera?

Euphrosyne Doukaina Kamatera was Byzantine.

Sources & further reading

· Wikipedia: Euphrosyne Doukaina Kamatera

· Wikidata: Q272620

· DBpedia: Euphrosyne Doukaina Kamatera

Cite this page

APA: Biography.guide. (2026). Euphrosyne Doukaina Kamatera. https://biography.guide/euphrosyne-doukaina-kamatera/

MLA: "Euphrosyne Doukaina Kamatera." Biography.guide, https://biography.guide/euphrosyne-doukaina-kamatera/.

Chicago: "Euphrosyne Doukaina Kamatera." Biography.guide. https://biography.guide/euphrosyne-doukaina-kamatera/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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