Jacobus de Voragine
"Nazarenes" are referenced past the fourth century CE as well. Jacobus de Voragine (1230–98) described James as a "Nazarene" in The Golden Legend, vol 7. Thomas Aquinas (1225–74) quotes Augustine of Hippo, who was given an apocryphal book called Hieremias (Jeremiah in Latin) by a "Hebrew of the Nazarene Sect", in Catena Aurea — Gospel of Matthew, chapter 27. So this terminology seems to have remained at least through the 13th century in European discussions.