Julian (332 - 26 June 363), also known as Julian the Apostate, was Roman Emperor from 361 to 363, as well as a notable philosopher and author in Greek. A member of the Constantinian dynasty, Julian became Caesar over the western provinces by order of Constantius II in 355 and in this role campaigned successfully against the Alamanni and Franks. Most notable was his crushing victory over the Alamanni in 357 at the Battle of Argentoratum despite being outnumbered. In 360 in Lutetia (Paris) he was proclaimed Augustus by his soldiers, sparking a civil war between Julian and Constantius. Before the two could face each other in battle, however, Constantius died, after naming Julian as his rightful successor. In 363, Julian embarked on an ambitious campaign against the Sassanid Empire. Though initially successful, Julian was mortally wounded in battle and died shortly thereafter. Julian was a man of unusually complex character: he was "the military commander, the theosophist, the social reformer, and the man of letters." He was the last non-Christian ruler of the Roman Empire, and it was his desire to bring the Empire back to its ancient Roman values in order to, as he saw it, save it from dissolution. He purged the top-heavy state bureaucracy and attempted to revive traditional Roman religious practices at the cost of Christianity. His anti-Christian sentiment and promotion of Neoplatonic paganism caused him to be remembered as Julian the Apostate ( Apostates, "a person who has abandoned their religion, principles") by the church. He was the last emperor of the Constantinian dynasty, the empire's first Christian dynasty. Julian's personal religion was both pagan and philosophical; he viewed the traditional myths as allegories, in which the ancient gods were aspects of a philosophical divinity. The chief surviving sources are his works To King Helios and To the Mother of the Gods, which were written as panegyrics, not theological treatises. While there are clear resemblances to other forms of Late Antique religion, it is controversial as to which variety it is most similar. He learned theurgy from Maximus of Ephesus, a student of Iamblichus; his system bears some resemblance to the Neoplatonism of Plotinus; Polymnia Athanassiadi has brought new attention to his relations with Mithraism, although whether he was initiated into it remains debatable; and certain aspects of his thought (such as his reorganization of paganism under High Priests, and his fundamental monotheism) may show Christian influence. Some of these potential sources have not come down to us, and all of them influenced each other, which adds to the difficulties. According to one theory (that of G.W. Bowersock in particular), Julian's paganism was highly eccentric and atypical because it was heavily influenced by an esoteric approach to Platonic philosophy sometimes identified as theurgy and also Neoplatonism. Others (Rowland Smith, in particular) have argued that Julian's philosophical perspective was nothing unusual for a "cultured" pagan of his time, and, at any rate, that Julian's paganism was not limited to philosophy alone, and that he was deeply devoted to the same gods and goddesses as other pagans of his day.