Answer
Valentinus, a prominent Gnostic, was refuted by Irenaeus, a Christian theologian. Irenaeus argued against Valentinus's complex system of emanations, which posited a series of divine beings emanating from a supreme God. Irenaeus maintained that Valentinus's system was incompatible with the simplicity and unity of the true God revealed in Scripture. He also criticized Valentinus's docetic view of Christ, which denied the reality of Christ's physical body.