Irenaeus of Lyons
Irenaeus (Active AD 175 - 195) was a student of Polycarp of Smyrna and was born into a Christian family in the early 2nd Century in Asia Minor. He moved to Lyons in France as a young man where Christians from Asia Minor had already planted churches. After persecution took the life of the Bishop of Lyons in 177, Irenaeus was elected in his place. His lengthy refutation of Gnosticism marks him out as one of the most significant 2nd Century Church Fathers.
One of St. Irenaeus' famous work is Adversus Haereses (Against Heresies). It tells us, among other things, the names of the Gospel writers, the place and time of the composition of the Gospel accounts, the circumstances, and local Churches they wrote to.