Gerhoch of Reichersberg (1093–1169) was a German Augustinian canon, reformer, and prolific polemical theologian who served as provost of the monastery of Reichersberg in Bavaria from 1132 until his death. A committed adherent of the Gregorian Reform, he wrote extensively against simony, lay investiture, and the perceived corruption of the imperial church, while also engaging in doctrinal controversies with the schools of Paris over the nature of Christ and the sacraments. His major works include the Liber de edificio Dei, the De investigatione Antichristi, and extensive commentaries on the Psalms, which weave together ecclesiological polemic and spiritual exegesis. His writings occupy the bulk of the third volume of the MGH Libelli de Lite, reflecting his central importance in twelfth-century debates over ecclesiastical reform.
