Prochorus
The name Prochorus means “he that presides over the choirs”.
Smith's Bible Dictionary 1863
(leader of the chorus), one of the seven deacons, being the third of the list, and named next after Stephen and Philip. (Acts 6:5)
International Standard Bible Encyclopedia 1915
prok'-o-rus (Prochoros) : One of "the seven" chosen by the Christian community in Jerusalem to superintend the dispensing of charity to the widows and other poor (Ac 6:5). The name is Greek, and he may have been a Hellenist. According to tradition he became bishop of Nicomedia and died a martyr at Antioch.