Saint Callistus was initially a slave in the imperial Roman household and he was imprisoned more than once. After his release, he eventually became superintendent of the Christian burial ground. Then he was ordained by the Pope as a deacon. He became the Pope’s advisor and friend.
He was elected as Pope by the majority which earned him a rival, St. Hippolytus. He was accused by his rival for being too lenient. Apparently, Saint Callistus held marriages between free women and slaves which was contrary to the Roman law and also had a lenient policy towards those who temporarily denied their faith during the period of persecution. Saint Callistus, just like Peter, was also commemorated as a martyr.
