Doukas, John

   Brother of Emperor Constantine X Doukas (qq.v.) who held the title of caesar (q.v.). He was involved in many important events from 1057-1081. He was a trusted advisor and strategos (q.v.) who helped to put down a conspiracy in 1061. When Romanos IV (q.v.) was captured by the Seljuks at the battle of Mantizkert (qq.v.), he forced the empress Eudokia Makrembolitissa (q.v.) into a monastery. With the help of Michael Psellos (q.v.) he engineered the enthronement of Michael VII (q.v.), and the blinding of Romanos IV. However, a palace eunuch (q.v.) named Nikephoritzes (q.v.) plotted the fall of John Doukas. This was accomplished by sending him with an army against the forces of Roussel de Bailleul (q.v.), who had rebelled in Asia Minor (q.v.). Roussel captured John and proclaimed him emperor (and alleged supporter), but soon John was captured by the Turks (q.v.) and ransomed by Constantine X. John wisely decided to become a monk to avoid punishment. John's final historical role was to arrange the marriage of his granddaughter Irene Doukaina to the future Alexios I Komnenos (qq.v.), and to help engineer Alexios's accession to the throne. In the Alexiad, Anna Komnene (q.v.) relates how John, dressed as a monk, and standing with Alexios and his army below the walls of Constantinople (q.v.) in 108l, was mockingly referred to as "the abbot" by the Varangian Guard (q.v.) on the walls above, and how John advised Alexios not to attack these troops but to befriend them. It was advice that gave Alexios entrance to the capital, and hence the throne. He remained an esteemed advisor to the new emperor until his death in about 1088.

Historical Dictionary of Byzantium . .

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  • John Doukas, Caesar — John Doukas or Ducas (Greek: Ιωάννης Δούκας, Iōannēs Doukas ), (died c. 1088), was the son of Andronikos Doukas, a Paphlagonian nobleman who may have served as governor of the theme of Moesia and younger brother of Emperor Constantine X Doukas.… …   Wikipedia

  • John Doukas (disambiguation) — John Doukas or John Ducas (Greek: Ιωάννης Δούκας, Iōannēs Doukas ) is the name of several members of the Doukas, Komnenos, and Angelos families and their descendants. It may refer to any of the following:* John Doukas, Caesar, brother of Emperor… …   Wikipedia

  • John Palaiologos (despot) — John Komnenos Palaiologos (Greek: Ἱωάννης Κομνηνός Παλαιολόγος, after 1225 – ca. 1274/1275) was a Byzantine aristocrat, brother to Emperor Michael VIII Palaiologos (r. 1259–1282), who served as the commander in chief of the Byzantine army.… …   Wikipedia

  • John III Doukas Vatatzes — or Ducas Vatatzes (Greek: Ιωάννης Γ΄ Δούκας Βατάτζης, Iōannēs III Doukas Batatzēs ) (c. 1192, Didymoteicho ndash; November 3, 1254, Nymphaeum) was emperor of Nicaea 1221 1254.LifeJohn Doukas Vatatzes was probably the son of the general Basil… …   Wikipedia

  • John I Doukas — or Ducas (Greek: Ιωάννης Α Δούκας, Iōannēs I Doukas ), (c. 1240 ndash; 1289), was ruler of Thessaly from c. 1268 to his death in 1289.John Doukas was the illegitimate son of Michael II Komnenos Doukas of the Despotate of Epirus by his mistress… …   Wikipedia

  • John Doukas — or Ducas (Greek: Ιωάννης Δούκας, Iōannēs Doukas ), (c. 1126 ndash; 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,… …   Wikipedia

  • John Komnenos Doukas — or Comnenus Ducas (Greek: Ιωάννης Κομνηνός Δούκας, Iōannēs Komnēnos Doukas ), was ruler of Thessalonica from 1237 until his death in 1244.John was the eldest son of Theodore Komnenos Doukas and Maria Petraliphaina. In 1230 his father was captured …   Wikipedia

  • John II Doukas — John II Doukas, also Angelos Doukas or Angelus Ducas (Greek: Ιωάννης Β΄ Άγγελος Δούκας, Iōannēs II Angelos Doukas ), was ruler of Thessaly from 1303 to his death in 1318.John II Angelos Doukas was the son of Constantine Doukas of Thessaly by his… …   Wikipedia

  • John II Orsini — John II Orsini, also John Komnenos Doukas or Comnenus Ducas (Greek: Ιωάννης Κομνηνός Δούκας, Iōannēs Komnēnos Doukas , Italian: Giovanni II Orsini), was count palatine of Cephalonia from 1323 to 1324 and ruler of Epirus from 1323 to 1335.LifeJohn …   Wikipedia

  • John IV Laskaris — John IV Doukas Laskaris or Ducas Lascaris (Greek: Ιωάννης Δ΄ Δούκας Λάσκαρις, Iōannēs IV Doukas Laskaris ), December 25 1250 ndash; c. 1305) was emperor of Nicaea from August 18, 1258 to December 25, 1261. This small empire was one of the Greek… …   Wikipedia

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