Quadratus

• a Roman surname, e. g. Ummilius Quadratus, Plin. Ep. 6, 11, 1; 7, 24, 6.

(1) An early defender of the Christian religion, whose work (now lost) he dedicated to the emperor Hadrian in the year A.D. 126. Quadratus was in early life a resident of Asia Minor, and afterwards a bishop of the Church at Athens, but of the details of his career little is known.

(2) Asinius. An author who wrote in Greek two historical works, one a history of Rome (Χιλιετηρίς) in the Ionic dialect, treating of the city from its foundation to the year A.D. 248, in which the Ludi Saeculares were celebrated; and a history of Parthia. Quadratus lived during the reigns of the emperors Philippus I. and Philippus II. (A.D. 244- 249).

(3) Lucius Ninnius, a tribune of the plebs in B.C. 58, when he strongly sided with Cicero against his own colleague P. Clodius Pulcher (q.v.).