Theodore Angelos

Theodore Angelos (Greek: Θεόδωρος Ἄγγελος, romanized: Theodōros Angelos) was co-ruler of Thessaly from c. 1289 to his death in c. 1299.

Theodore was the third son of John I Doukas, ruler of Thessaly by his wife, who is only known by her monastic name Hypomone ("Patience").^[1][2] When John died in or shortly before 1289, he was succeeded by Theodore's older brother Constantine, but Theodore served as his co-ruler. Initially, the two brothers were under the tutelage of Anna Palaiologina Kantakouzene as they were underage.^[3] Awarded the title of sebastokrator from the Byzantine emperor in 1295, he was scheduled to marry the Armenian princess Theophano, daughter of King Leo II, but this project fell through.^[2] He was defeated in battle by the Byzantine general Michael Doukas Glabas Tarchaneiotes, and died in c. 1299.^[2]

• Ferjančić, Božidar (1974). Тесалија у XIII и XIV веку [Thessaly in the 13th and 14th Centuries] (in Serbian). Belgrade: Византолошког институт САНУ.
• Fine, John V. A. Jr. (1994) [1987]. The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest. Ann Arbor, Michigan: University of Michigan Press. ISBN 0-472-08260-4.
• Polemis, Demetrios I. (1968). The Doukai: A Contribution to Byzantine Prosopography. London: The Athlone Press. OCLC 299868377.
• Trapp, Erich; Beyer, Hans-Veit; Walther, Rainer; Sturm-Schnabl, Katja; Kislinger, Ewald; Leontiadis, Ioannis; Kaplaneres, Sokrates (1976–1996). Prosopographisches Lexikon der Palaiologenzeit (in German). Vienna: Verlag der Österreichischen Akademie der Wissenschaften. ISBN 3-7001-3003-1.