bn:00008855n
Noun Concept
Categories: Ancient Roman titles, Ancient Greek government, Ancient Greek titles, Titles of national or ethnic leadership, Government of the Byzantine Empire
EN
basileus  basileis  Basileos Megas  Basileus Megas  Basileus toon basileoon
EN
A ruler of the eastern Roman Empire WordNet 3.0
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EN
Basileus is a Greek term and title that has signified various types of monarchs in history. Wikipedia
Greek title denoting various types of monarchs throughout history Wikidata
A title of the Byzantine emperor. Wiktionary