John Doukas

John Doukas

John Doukas or Ducas (Greek: Ιωάννης Δούκας, "Iōannēs Doukas"), (c. 1126 – c. 1200) was the eldest sonFact|date=January 2008 of Constantine Angelos by Theodora Komnene, the seventh child of the Byzantine Emperor Alexios I Komnenos and Irene Doukaina, from whose family name John Doukas took his own.

Career

Doukas is first attested in an imperial document in 1166. In 1176 he participated at the Battle of Myriokephalon as a military commander, but failed to repel the Seljuk Turks when ordered to do so. In 1185 he supported his nephew Isaac II Angelos in overthrowing Andronikos I Komnenos and seizing the imperial throne. Isaac II rewarded him with the high court dignity of "sebastokratōr". For a while John Doukas was now the second most prominent man in the Empire, and in 1186 he led one of the exeditions against Peter and Asen, who had rebelled, trying to re-establish the independence of Bulgaria. In spite of his advanced age, John acquitted himself with some success. The suspicious emperor deprived him of his command, and in 1195 the elderly John supported the usurpation of his other nephew, Isaac's brother Alexios III Angelos.

Family

His first marriage (his wife's name is unknown) produced two sons:
# Isaac Angelos, who married the daughter of Alexios Branas
# Alexios Doukas Komnenos Angelos

His second marriage was to a distant relative, Zoe Doukaina, a granddaughter of Isaac Komnenos, the son of Emperor John II Komnenos. They had three sons:
# Theodore Komnenos Doukas, who succeeded his half-brother Michael as ruler of Epirus
# Manuel Komnenos Doukas, who succeeded Theodore as ruler of Thessalonica
# Constantine Komnenos Doukas, who succeeded Theodore as ruler of Acarnania

He had three daughters, none of whose names is known for certain.
# A daughter, who married Mateo Orsini, count of Cephalonia; their son Riccardo was count of Cephalonia from 1260 to 1304.
# Another daughter married Michael Kantakouzenos, who, with Theodore Branas, John Petraliphas and others, conspired to overthrow Isaac II and to bring Alexios III Angelos to power in 1195.

He also had an illegitimate son by an unnamed mistress:
# Michael I Komnenos Doukas, born c. 1170, founder and first ruler of the Despotate of Epirus

Bibliography

*D.I. Polemis, "The Doukai", London, 1968.
*K. Varzos, "Ē genealogia tōn Komnēnōn" (Thessalonica, 1984) vol. 1 pp. 641-9; vol. 2 pp. 540-689.


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