He may be the Macarius, bishop of Magnesia, who, at the Synod of the Oak in 403, brought charges against Heraclides, bishop of Ephesus, the friend of John Chrysostom, although Adolf Harnack dated him in the late third century.
He wanted to reduce the number of generals from fifteen to three; Hermocrates, Heraclides, and Sicanus were elected and Hermocrates sent for help from Corinth and Sparta.