By J.D. Carriker (oakthorne@hotmail.com)
The Imperiturae were first founded as Rome began to rise in power, sometime after 200 BC. The kindred who gathered there (to be later known as the Inconnu) saw the need for a group of daytime defenders and agents. So, drawing from various bodies of lore (including that of the Tzimisce), these ambitious Kindred created the Imperiturae.
They found the perfect candidates in the blood cult of a Cappadocian member of their order. This cult worshipped their domitor as the earthly embodiment of the chthonic diety Dis Pater. In short order, they were ghouls to the Inconnu. Generations later, the Imperiturae birthed their first Revenant -- a boy-child called Disfilis (Son of Dis). By this time, Rome was teetering on the verge of total collapse and the Goths slavered at the Empire's gates.
Many Inconnu fled Rome, but a few retreated into the Catholic Church. With them went the Imperiturae, becoming a secret order of monks within the Church. In time, even the teachings of the Imperiturae changed, as they absorbed more and more of the Church teachings. Soon, worship of Dis became the worship of the Risen Christ, as ascendant over death as Dis Pater. Eventually, their moral system (which included Cainites in an exalted role) trickled down to Cainite morality, becoming the Via Caeli, or Road of Heaven (see Vampire: the Dark Ages for details of this Road).
As time has passed, the Imperiturae have continued their reverence for their Inconnu masters and providers. As happens to any organization secluded from the parent branch, the religious practices of the Imperiturae have wildly diverged from the Catholic faith. The Imperiturae never took vows of chastity or celibacy; their Mothers and Fathers are more than just titles. The Communion is precisely that -- touching God through his angels, the Cainites, who provide the Vitae in the chalice. Their Mass is held at night to accomidate their Cainite patrons and should any of them be so honored with the Embrace, the new Angel of God is shrouded and placed within a tomb. When he emerges three nights later, he is proclaimed to be Resurrected.