Cyril of Jerusalem

Born around 313 AD in or near Jerusalem, Cyril was ordained a deacon by Bishop Macarius and a priest by Maximus. He succeeded Maximus as Bishop of Jerusalem around 350/351. His episcopacy was marked by numerous theological conflicts, notably with the Arians, which led to his three exiles under Emperors Constantius II and Valens. Cyril is most famous for his 'Catechetical Lectures' (Catecheses mystagogicae), a collection of 24 lectures he delivered to catechumens and neophytes, offering valuable insight into early Christian liturgy and doctrine. He participated in the First Council of Constantinople in 381, where he reaffirmed the Nicene faith. He died in 386. He was proclaimed a Doctor of the Church by Pope Leo XIII in 1883.