Analysis of information sources in references of the Wikipedia article "Macedonian dynasty" in Simple English language version.
Though of Armenian stock, Basil was called the Macedonian because he had been born in the Theme of Macedonia (...)
(...) dynasty founded by Basil I, who came from an Armenian family that settled in Thrace or Macedonia.
Four emperors — Leo V, Basil I, Romanos I and John Tzimiskes — seem to have been Armenian, as well as the empress Theodora, Theophilos' wife (...)
Basil I, "the Macedonian," was born in Thrace or Macedonia, probably of an Armenian family settled in the area earlier in the century.