Stilicho (ˈstɪlɪkoʊ; Greek: Στιλίχων Stilíchōn; 359 – 22 August 408) was a military commander in the Roman army who, for a time, became the most powerful man in the Western Roman Empire. He was of Vandal origins and married to Serena, the niece of emperor Theodosius I. He became guardian for the underage Honorius. After nine years of struggle against barbarian and Roman enemies, political and military disasters finally allowed his enemies in the court of Honorius to remove him from power. His fall culminated in his arrest and execution in 408. Stilicho was the son of a Vandal cavalry officer and a provincial woman of Roman birth. Despite his father's origins there is little to suggest that Stilicho considered himself anything other than a Roman, and his high rank within the empire suggests that he was probably not an Arian like many Germanic Christians but rather a Nicene Christian like his patron Theodosius I, who declared Nicene Christianity the official religion of the empire. Stilicho joined the Roman army and rose through the ranks during the reign of Theodosius I, who ruled the Eastern-half of the Roman Empire from Constantinople, and who was to become the last emperor to rule both the eastern and western halves of the empire jointly. In 383, Theodosius sent him as an envoy to the court of the Persian King Shapur III in Ctesiphon to negotiate a peace settlement relating to the partition of Armenia. Upon his return to Constantinople at the successful conclusion of peace talks, Stilicho was promoted to comes sacri stabuli and soon after to comes domesticorum. In 393 Theodosius promoted Stilicho to comes et magister utriusque militiae and gave him command of the campaign against the Goths in the Balkans. The emperor recognized that Stilicho could be a valuable ally, and to form a blood tie with him, Theodosius married his adopted niece Serena to Stilicho. The marriage took place around the time of Stilicho's mission to Persia, and ultimately Serena gave birth to a son, who was named Eucherius, and two daughters, Maria and Thermantia.