Breithaupt, Christian a German theologian, nephew of Johann Friedrich, was born May 1, 1689, at Ermsleben, in the principality of Halberstadt. He was professor of philosophy at Helmstadt in 1718, and of eloquence in 1740. He died October 12, 1749. His principal works are, De Principiis Humanarum Actionum (Halle, 1714): — De Stylo Sulpitii Severi (ibid. 1713): — Commentatio de Recta Linguae Anglicanae Pronunciatione (Helmstadt, 1740). See Hoefer, Nouv. Biog. Generale, s.v.