Alexander (Greek: ΑλÎξανδÏος, Alexandros), (c. 870–913) was the third son of Emperor Basil I and Eudokia Ingerina. Unlike his older brother Leo VI the Wise, his paternity was not disputed between Basil I and Michael III because he was born years after the death of Michael.
Alexander (in Greek ΑλÎξανδÏος; died in 220 BC), brother of Molon. On the accession of the Seleucid king Antiochus III, afterwards called the Great, in 223 BC, he entrusted Alexander with the government of the satrapy of Persis and Molon received Media. Antiochus was then only fifteen years of age, and this circumstance together with the fact that Hermeias, a crafty intriguer whom every one had to fear, was all-powerful at his court, induced the two brothers to form the plan of causing the upper satrapies of the kingdom to revolt.