Isaac Doukas Vatatzes (Greek: Ἰσαάκιος Δούκας Βατάτζης, romanized: Isaakios Doukas Vatatzēs c. 1188-1261) was the brother of the Nicaean emperor John...

John III Doukas Vatatzes, Latinized as Ducas Vatatzes (Greek: Ἰωάννης Γ´ Δούκας Βατάτζης, Iōannēs III Doukas Vatatzēs, c. 1192 – 3 November 1254), was...

several senior generals of the Byzantine army and, after John III Doukas Vatatzes intermarried with the Laskaris family, the ruling line of the Empire...

rank of sebastokrator. Isaac Komnenos Vatatzes was the youngest son of Alexios Vatatzes, a son of the general Theodore Vatatzes and the purple-born princess...

Theodore Komnenos Doukas (Greek: Θεόδωρος Κομνηνὸς Δούκας, Theodōros Komnēnos Doukas; Latinized as Theodore Comnenus Ducas; died c. 1253) or Theodore Angelos...

III Doukas Vatatzes, Nicaean emperor (r. 1221–1254) and his relatives, the late Byzantine historian Doukas, and the megas papias Demetrios Doukas Kabasilas...

commander, and likely the father of the Nicaean emperor John III Doukas Vatatzes. Vatatzes was of low birth, hailing from the region around Adrianople and...

little definitely known concerning the ancestry of Alexios Doukas Mourtzouphlos. The noble Doukas clan were not the only Doukai, as the surname was also employed...

Isaac began to recover soon after Doukas' nomination, and started reconsidering his decision. Psellos again took the decisive step of having Doukas publicly...

Isaac Laskaris, brother of Theodore I Laskaris, b. 1221–1224. George Laskaris, brother of Theodore I Laskaris, b. 1211–1224?. Isaac Doukas Vatatzes,...

Michael VII Doukas or Ducas (Greek: Μιχαήλ Δούκας, romanized: Mikhaḗl Doúkas), nicknamed Parapinakes (Greek: Παραπινάκης, lit. 'minus a quarter', a reference...

Constantine X Doukas or Ducas (Greek: Κωνσταντῖνος Δούκας, Kōnstantinos X Doukas, c. 1006 – 23 May 1067), was Byzantine emperor from 1059 to 1067. He was...

Komnenos, Isaac seized power and rose to the Byzantine throne, establishing the Angelos family as the new imperial dynasty. His father Andronikos Doukas Angelos...

Byzantine Empire under the Macedonian dynasty Byzantine Empire under the Doukas dynasty Byzantine Empire under the Komnenos dynasty Byzantine Empire under...

prestigious 'Doukas' and 'Komnenos', and are collectively known as the Komnenodoukas (Κομνηνοδούκας) dynasty. In c. 1224, Theodore Komnenos Doukas conquered...

Theodora was a daughter of John Doukas and Eudokia Angelina. Her paternal grandfather was sebastokrator Isaac Doukas Vatatzes (died 1261), the older brother...

Byzantine emperors). The full surname of the Palaiologan emperors was "Doukas Angelos Komnenos Palaiologos". Andronikos II was crowned co-emperor on 8...

 1200), cousin of Emperors Isaac II Angelos and Alexios III Angelos John Doukas Komnenos (1128–1176) John III Doukas Vatatzes (1193–1254), Emperor of Nicaea...

unsuccessfully tried to topple Theodore's successor, John III Doukas Vatatzes, in 1224. Isaac was one of at least six brothers of Theodore I Laskaris, and...

Constantine Angelos Doukas, Latinized as Angelus Ducas (Greek: Κωνσταντίνος Ἂγγελος Δούκας, romanized: Kōnstantinos Angelos Doukas), was a usurper who...

marched against Vatatzes. The two armies met at Poimanenon, near a church dedicated to the Archangel Michael. In the ensuing battle, Vatatzes achieved a decisive...

John IV Doukas Laskaris (or Ducas Lascaris) (Greek: Ἰωάννης Δούκας Λάσκαρις, Iōannēs Doukas Laskaris; December 25, 1250 – c. 1305) was the fourth emperor...

Theodore II Doukas Laskaris or Ducas Lascaris (Greek: Θεόδωρος Δούκας Λάσκαρις, romanized: Theodōros Doukas Laskaris; November 1221/1222 – 16 August 1258)...

was married to a daughter of the sebastokrator Isaac Doukas Vatatzes, brother of John III Doukas Vatatzes. Alexios Strategopoulos first appears in the chronicles...

Eirene Komnene Angelina 2. Andronikos II Palaiologos 20. Isaac Doukas Vatatzes 10. John Doukas Vatatzes 5. Theodora Doukaina Vatatzina 22. John Komnenos Angelos...

son-in-law, John III Doukas Vatatzes The accession of Vatatzes was initially challenged by the Laskarids, with the sebastokratores Isaac and Alexios, brothers...

preferred to use the more prestigious surnames of "Doukas" or "Komnenos", Demetrios used the name "Angelos Doukas" (Ἀγγελοδούκας) in a manuscript notice dated...

with the previous Doukas dynasty: Alexios I married Irene Doukaina, the grandniece of Constantine X Doukas, who had succeeded Isaac I in 1059. Thereafter...

him with his nephew, Constantine Doukas. Konstantios Doukas was born in 1060, the son of Emperor Constantine X Doukas and Empress Eudokia Makrembolitissa...

III Doukas Vatatzes, who had married Theodore's daughter Irene Laskarina. Vatatzes had to fight off a rival claim by Theodore's brothers, Isaac and Alexios...