Eulalius
Antipope (418 -419 ), died 423. An archdeacon , he was elected by the minor clergy in opposition to Boniface I after the death of Pope Zosimus. Both claimants proceeded to rule in Rome. The Eulalian Prefect of Rome secured the imperial confirmation for the antipope , but the adherents of Boniface secured a hearing before Emperor Honorius, who summoned a synod at Ravenna, 419 , to settle the claims. Pope and antipope were exiled until the synod had come to a decision. Eulalius declined to abide by the ruling and seized the Lateran Basilica . Honorius refused to consider his claim at all and recognized Boniface as the legitimate pontiff. Eulalius was later made Bishop of Nepi.
Fuente: New Catholic Dictionary
Eulalius
anti-Pope, lived in the first part of the fifth century. Created arch-cardinal by Innocent I, he was, after the death of pope Zosimus, near the close of the year 418, through the influence of Symmachts, elected pope in opposition to Boniface I, who had been elected by a legal majority. For several months he contended against Boniface, but finally the emperor Honorius decided in favor of Boniface, being persuaded that Eulalius had been illegally elected, and gave orders to Symmachus, the governor of the city of Rome, to drive Eulalius from the city, and to put Boniface in possession of the see. Eulalius thereupon left Rome, and became bishop of Nepi. After the death of Boniface, at the election of Celestine I, the friends of Eulalius offered, to contend again in his favor, but he promptly declined the papal dignity. Bower, History of the Popes, 1:358 sq.; Hoefer, Nouv. Biog. Genesis 16:709; Wetzer und Welte, Kirchen-Lex. 3:750; Jaffe, Regesta Pontificum Romanorum. (J.H.W.)