The priests were the Arval Brothers, who conducted the victims - ox, sheep and pig (suovetaurilia) - in procession with prayer to Ceres round the boundaries of the ager Romanus.
2223) of this locality with the grove of the Arval brothers at the 5th mile of the Via Portuensis, to the W.
ARVAL BROTHERS (Fratres Arvales), in Roman antiquities, a college or priesthood, consisting of twelve members, elected for life from the highest ranks in Rome, and always apparently, during the empire, including the emperor.
He was specially admitted as an extraordinary member of the great priestly colleges; his name was included by the Arval Brethren in their prayers for the safety of the emperor and his house; at the games in the circus his appearance in triumphal dress contrasted significantly with the simple toga praetexta worn by Britannicus.
We may mention, as distinct from the above, the flamen curialis, who assisted the curio, the priest who attended to the religious affairs of each curia; the flamens of various sacerdotal corporations, such as the Arval Brothers; the flamen Augustalis, who superintended the worship of the emperor in the provinces.