Arcadius (Latin: Flavius Arcadius Augustus; Greek: Ἀρκάδιος; 377/378 – 1 May 408) was Byzantine Emperor from 395 to 408. He was the eldest son of Theodosius I and his first wife Aelia Flaccilla, and brother of the Western Emperor Honorius. A weak ruler, his reign was dominated by a series of powerful ministers and by his wife, Aelia Eudoxia.