Eustachius

(or Eustathius, said to have been named Placidius before his conversion), a noted saint, is commemorated by the Latins November 2, and by the Greeks September 20, as a military. martyr, along with his wife Theopista, and his two sons, Agapius and Theopistus, at Rome, under Hadrian, A.D. 118. His Acts are evidently spurious, but his martyrdom is undoubted. Many churches are dedicated to him, especially one in Rome, and one in Paris. Baronius thinks he may have been the Placidus who was a general under Titus (Josephus, War, 3:4; 4:187), but that would make him very aged. See Jameson, Sacred and Legendary Art, page 792.