Arval Brothers är´vəl [key], in Roman religion, college of 12 priests chosen from the most distinguished senatorial families. It was said that the original brothers were sons of Acca Larentia . Theirs was chiefly an agricultural cult, but they were also concerned with the well-being of the imperial house. The Roman emperor was necessarily a member of the college. Their most important ceremony, held in May, was in honor of Dea Dia, a goddess of fields and crops.
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