A pater familias was the senior priest of his household. He offered daily cult to his lares and penates, and to his di parentes/divi parentes at his domestic shrines and in the fires of the household hearth. His wife (mater familias) was responsible for the household's cult to Vesta. In rural estates, bailiffs seem to have been responsible for at least some of the household shrines (lararia) and their deities. Household cults had state counterparts. In Vergil's Aeneid, Aeneas brought the Trojan cult of the lares and penates from Troy, along with the Palladium which was later installed in the temple of Vesta.

Who was the senior priest of the household in Rome?