Saint Servatius was a 4th-century bishop of Tongeren who was born in Armenia. A prominent diplomat and church leader, he participated in several important ecclesiastical councils, including the Council of Sardica, where he defended Trinitarian views against Arianism. He served as an envoy to the Roman emperor Constantius II and is traditionally credited with founding early Christian churches in his diocese. He died in Maastricht in 384 and is venerated as a saint in the Catholic and Orthodox traditions.