mæɡnˈɛntɪəs juːzˈɜːpt pˈaʊɚ fɹʌm kˈɑːnstənz ˌɔn ˈeɪtiːn dʒˈænjuːˌɛɹi θɹˈiːhˈʌndɹɪd fˈɪfti, ænd ˈɛlɪvˌeɪɾᵻd dᵻsˈɛntɪəs æz sˈiːzɚ lˈeɪɾɚ ðæt jˈɪɹ, pɚhˈæps ˌɔn dʒuːlˈaɪ ɔːɹ ˈɔːɡəst.
Magnentius usurped power from Constans on 18 January 350, and elevated Decentius as caesar later that year, perhaps on July or August.