(Saint Irenaeus) asserts/defends the concept that there are precisely four Canon Gospels.
Born in Asia Minor, now Turkey. (b. 120 CE; d. 202 CE)
Irenaeus was pivotal in codifying the four gospels noted above as being the exclusive Canon Gospels. This is more than a hundred years before the Constantine evolvement.
On another front, as relates to philosophy, there is the well–regarded “Irenaean theodicy” (philosophical response to Evil) very similar to the predecessor rabbinic “nehama de–kissufa” (“un–earned bread”) theodicy. See encyclopaedia entries for “Irenaean theodicy.”
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