Alcher of Clairvaux

Alcher of Clairvaux was a twelfth-century Cistercian monk of Clairvaux Abbey. He was once thought to be the author of two works, now attributed by many scholars to an anonymous pseudo-Augustine of the same period. 
Thomas Aquinas made the traditional attribution of the "De spiritu et anima" to Alcher. It is now reckoned to be a compilation of c.1170, taken from Alcuin, Anselm, Bernard of Clairvaux, Augustine of Hippo, Cassiodorus, Hugh of St Victor, Isaac of Stella, and Isidore of Seville; also Boethius. It is a source for medieval views on self-control, and the doctrine that "the soul rules the body".
"De diligendo Deo" is a devotional work, also traditionally attributed to Alcher.
At one point in the "Summa Theologica", Aquinas writes about "De Spiritu et Anima", "that book is not of great authority."