query: country_of_citizenship john i doukas of thessaly
supports: The Angelos family, feminine form Angelina, plural Angeloi, was a Greek noble lineage which gave rise to three Byzantine emperors who ruled between 1185 and 1204. From the 13th to the 14th century, a branch of the family ruled Epiros, Thessaly and Thessaloniki under the name of Komnenos Doukas. The family name means "angel" (messenger of God). Thessaloniki is the second-largest city in Greece and the capital of Greek Macedonia, the administrative region of Central Macedonia and the Decentralized Administration of Macedonia and Thrace. Its nickname is   ("Symprotévousa"), literally "the co-capital", a reference to its historical status as the  ("Symvasilévousa") or "co-reigning" city of the Eastern Roman (Byzantine) Empire, alongside Constantinople. Komnenos, Latinized Comnenus, plural Komnenoi or Comneni (, pronounced /komniní/), is the name of a noble family who ruled the Byzantine Empire from 1081 to 1185, and later, as the Grand Komnenoi (, "Megalokomnenoi") founded and ruled the Empire of Trebizond (12041461). Through intermarriages with other noble clans, notably the Doukai, Angeloi, and Palaiologoi, the Komnenos name appears among most of the major noble houses of the late Byzantine world. Thessaly ("Thessalía"; ancient Thessalian: , "Petthalía") is a traditional geographic and modern administrative region of Greece, comprising most of the ancient region of the same name. Before the Greek Dark Ages, Thessaly was known as Aeolia, and appears thus in Homer's "Odyssey". An angel, especially according to Abrahamic religions and Zoroastrianism, is a spiritual being superior to humans in power and intelligence. Angels are typically described as benevolent, dreadful, and endowed with wisdom and knowledge of earthly events, but not infallible; for they strive with each other, and God has to make peace between them. Most of them serve either as intermediaries between Heaven and Earth, or as guardian spirits. They are studied in the theological doctrine of angelology. In Christian Science, the word "angel" is used to refer to an inspiration from God. The use of the term has extended to refer to artistic depictions of the spirits, and it is also used figuratively to refer to messengers and harbingers, and to people who possess high qualities of goodness, purity, selflessness, intelligence, and/or beauty. Doukas, Latinized as Ducas (feminine: Doukaina/Ducaena, ; plural: Doukai/Ducae, ), from the Latin tile "dux" ("leader", "general", Hellenized as ["ðoux"]), is the name of a Byzantine Greek noble family, whose branches provided several notable generals and rulers to the Byzantine Empire in the 9th11th centuries. A maternally-descended line, the Komnenodoukai, founded the Despotate of Epirus in the 13th century, with another branch ruling over Thessaly. After the 12th century, the name "Doukas" and other variants proliferated across the Byzantine world, and were sometimes presented as signifying a direct genealogical relationship with the original family or the later branch based in the Despotate of Epirus. The Empire of Trebizond or the Trapezuntine Empire was a monarchy that flourished during the 13th through 15th centuries, consisting of the far northeastern corner of Anatolia and the southern Crimea. Originally formed during a revolt against the usurpation of the imperial throne by the grandsons of Emperor Andronikos I Komnenos, Trebizond (current Trabzon, Turkey, with which the name of the empire is a cognate) became a Byzantine Greek successor state established after the fall of the Eastern Roman Empire (Byzantine) in the Fourth Crusade, along with the Empire of Nicaea and the Despotate of Epirus. The Emperors of Trebizond pressed their claim on the Imperial throne for decades after the Nicaean reconquest of Constantinople in 1261. Homer (, "Hómros") is the name ascribed by the Ancient Greeks to the semi-legendary author of the two epic poems, the "Iliad" and the "Odyssey", the central works of Greek literature. Many accounts of Homer's life circulated in classical antiquity, the most widespread being that he was a blind bard from Ionia, a region of central coastal Anatolia in present-day Turkey. The modern scholarly consensus is that these traditions do not have any historical value. The Byzantine Empire, also referred to as the Eastern Roman Empire, was the continuation of the Roman Empire in the East during Late Antiquity and the Middle Ages, when its capital city was Constantinople (modern-day Istanbul, which had been founded as Byzantium). It survived the fragmentation and fall of the Western Roman Empire in the 5th century AD and continued to exist for an additional thousand years until it fell to the Ottoman Turks in 1453. During most of its existence, the empire was the most powerful economic, cultural, and military force in Europe. Both "Byzantine Empire" and "Eastern Roman Empire" are historiographical terms created after the end of the realm; its citizens continued to refer to their empire as the "Roman Empire" (tr. ), or "Romania", and to themselves as "Romans". John I Doukas ( Greek :   '  , Ianns I Doukas ; c. 1240 -- 1289 ) , Latinized as Ducas , was ruler of Thessaly from c. 1268 to his death in 1289 . From his father 's family he is also inaccurately known as John Angelos . He was a descendant of John Doukas ( c. 1126 -- c. 1200 ) son of Constantine Angelos by Theodora Komnene , daughter of the Byzantine Emperor Alexios I Komnenos and Irene Doukaina , hence the combination of family names , `` Angelos Komnenos Doukas '' . Greece (' ), officially the Hellenic Republic (Greek: ' ), historically also known as Hellas ("" ), is a country in southeastern Europe. 
  Greece's population is approximately 10.955 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki. The Despotate of Epirus was one of the successor states of the Byzantine Empire established in the aftermath of the Fourth Crusade in 1204 by a branch of the Angelos dynasty. It claimed to be the legitimate successor of the Byzantine Empire, along the Empire of Nicaea and the Empire of Trebizond. The term "Despotate of Epirus" is, like "Byzantine Empire" itself, a modern historiographic convention and not a name in use at the time.
candidates: byzantine empire despotate of epirus earth empire of trebizond greece macedonia roman empire romania turkey western roman empire
answer: despotate of epirus