The Disputed Election and the Schism of Eulalius
When Pope Zosimus died on 27 December 418, two rival elections followed almost at once. A group of clergy drawn principally from the deacons occupied the Lateran basilica and elected the archdeacon Eulalius, while on the following Saturday a majority of the priests of the Roman Church elected Boniface, a former councillor of Pope Innocent I. Both men were consecrated on 29 December, Boniface at the Church of Saint Marcellus in the Campus Martius, leaving the city with two claimants to its episcopal see.
The dispute was submitted to the emperor Honorius, who at first recognized Eulalius but, after petitions alleging irregularities in his election, suspended judgment and summoned both parties. When Eulalius disregarded an imperial order to stay out of Rome and entered the city around Easter of 419, he forfeited the emperor's support; the council that had been proposed to settle the question at Spoleto was canceled, and on 3 April 419 Honorius confirmed Boniface as pope. By later account the schism had lasted some fifteen weeks. To prevent its recurrence, Honorius is said to have enacted a rule that, where a papal election was contested, neither claimant should be recognized and a fresh election should be held.