Easton's Bible Dictionary (1897)
Consoler, a Christian teacher at Antioch. Nothing else is known of him beyond what is stated in Acts 13:1, where he is spoken of as having been brought up with (Gr. syntrophos; rendered in R.V. “foster brother” of) Herod, i.e., Herod Antipas, the tetrach, who, with his brother Archelaus, was educated at Rome.
Smith's Bible Dictionary (1863)
(comforter) is mentioned in (Acts 13:1) as one of the teachers and prophets in the church at Antioch at the time of the appointment of Saul and Barnabas as missionaries to the heathen. He is said to have been brought up with Herod Antipas. He was probably his foster-brother.
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
MAN'AEN (consoler), one of the teachers of the church of Antioch, and foster-brother of Herod Antipas the tetrarch. Acts 13:1.
Hitchcock's Bible Names (1869)
a comforter; a leader