Sarmatio was a 4th-century monk in Milan and a disciple of Jovinian, who disputed the merits of the monastic and unmarried life.[1][2][3] Sarmatio first met Jovinian when he travelled to Milan, where Jovinian found two monks of a similar mind, Sarmatio and Barbatianus.[4] After Jovinian was expelled from Milan, Sarmatio kept doing work in Vercellae where he gathered a considerable following and public support; in response, Ambrose, the bishop of Milan, started defending ascetism.[2][5] The views Sarmatio was preaching were condemned in the Synod of Milan.[6]
Ambrose called Sarmatio and Barbatinus "foolish talkers, who say there is no merit in abstinence".[7]