Prochorus was one of the Seven Deacons chosen to care for the poor of the Christian community in Jerusalem (6:5). According to the later tradition he was one of the Seventy Apostles sent out by Jesus in Luke 10 and is celebrated today on the Old Calendar.
Tradition calls Prochorus the nephew of Stephen the Protomartyr. St Prochorus accompanied the holy Apostle Peter, who ordained him to be the bishop in the city of Nicomedia. He is also thought to have been a companion of John the Apostle, who consecrated him bishop of Nicomedia in Bithynia. He was wrongly thought to have been the author of the apocryphal Acts of John, which is dated by present scholars to the end of the 2nd century. According to the late tradition he was the bishop of Antioch and ended his life as a martyr in Antioch in the 1st century.
In Orthodox iconography he is always depicted as a scribe of John the Evangelist.
- From Wikipedia.