Antipope Eulalius, born in the year four hundred, served as a Catholic deacon before his brief tenure as antipope. His election in December of four hundred eighteen was marked by a contentious dual election alongside Pope Boniface I, a significant event in the history of the early Church.
Despite the initial support he garnered, Eulalius ultimately lost the papal contest to Boniface I, who would go on to lead the Church. This defeat did not mark the end of Eulalius's ecclesiastical career; instead, he transitioned to become the bishop of Napete, continuing his service to the Church in a different capacity.
The period of Eulalius's antipope reign lasted until April of four hundred nineteen, a brief but notable chapter in the complex narrative of papal history. His legacy, while overshadowed by that of Boniface I, remains a testament to the turbulent times of early Christianity.