Collegium (ancient Rome) in the context of "Summus Pontifex"

In ancient Rome, the Vestal Virgins or Vestals (Latin: Vestālēs, singular Vestālis [wɛsˈtaːlɪs]) were priestesses of Vesta, virgin goddess of Rome's sacred hearth and its flame.

The Vestals were unlike any other public priesthood. They were chosen before puberty from several suitable candidates, freed from any legal ties and obligations to their birth family, and enrolled in Vesta's priestly college of six priestesses. They were supervised by a senior vestal but chosen and governed by Rome's leading male priest, the pontifex maximus—in the Imperial era, this meant the emperor.

Juventas, also known as Iuventus or Juventus(Greek equivalent: Hebe), was the ancient Roman goddess whose sphere of tutelage was youth and rejuvenation. She was especially the goddess of young men "new to wearing the toga" (dea novorum togatorum)—that is, those who had just come of age.

Several voluntary associations (collegia) were formed for Juventas in the Italian municipalities, as attested by inscriptions.

The pontifex maximus (Latin for 'supreme pontiff') was the chief high priest of the College of Pontiffs (Collegium Pontificum) in ancient Rome. This was the most important position in the ancient Roman religion, open only to patricians until 254 BC, when a plebeian first held this position. Although in fact the most powerful office in the Roman priesthood, the pontifex maximus was officially ranked fifth in the ranking of the highest Roman priests (Ordo Sacerdotum), behind the Rex Sacrorum and the flamines maiores (Flamen Dialis, Flamen Martialis, Flamen Quirinalis).

A distinctly religious office under the early Roman Republic, it gradually became politicized until, beginning with Augustus, it was subsumed into the position of emperor in the Roman imperial period. Subsequent emperors were styled pontifex maximus well into Late Antiquity, including Gratian (r. 367–383), but during Gratian's reign the phrase was replaced in imperial titulature with the Latin phrase: pontifex inclytus ("honourable pontiff"), an example followed by Gratian's junior co-emperor Theodosius the Great and which was used by emperors thereafter including the co-augusti Valentinian III (r. 425–455), Marcian (r. 450–457) and the augustus Anastasius Dicorus (r. 491–518). The first to adopt the inclytus alternative to maximus may have been the rebel augustus Magnus Maximus (r. 383–388).

Roman funerary practices include the Ancient Romans' religious rituals concerning funerals, cremations, and burials. They were part of time-hallowed tradition (Latin: mos maiorum), the unwritten code from which Romans derived their social norms. Elite funeral rites, especially processions and public eulogies, gave the family an opportunity to publicly celebrate the life and deeds of the deceased, their ancestors, and the family's standing in the community. Sometimes the political elite gave costly public feasts, games and popular entertainments after family funerals, to honour the departed and to maintain their own public profile and reputation for generosity. The Roman gladiator games began as funeral gifts for the deceased in high-status families.

Funeral displays and expenses were supposedly constrained by sumptuary laws, designed to reduce class envy and consequent social conflict. The less well-off, and those who lacked the support of an extended family could subscribe to guilds or collegia which provided funeral services for members. Until their funeral and disposal, the dead presented a risk of ritual pollution. This was managed through funerary rituals which separated them from the world of the living, and consigned their spirit to the underworld. Professional undertakers were available to organise the funeral, manage the rites and dispose of the body. Even the simplest funerals of Rome's citizen and free majority could be very costly, relative to income. The poorest, and certain categories of criminal, could be dumped in pits or rivers, or left to rot in the open air. During plagues and pandemics, the system might be completely overwhelmed. Those who met an untimely or premature death, or died without benefit of funeral rites were believed to haunt the living as vagrant, restless spirits until they could be exorcised.