GERBERT, MARTIN VON HORNAU. — Benedictine, born at Horn on the Neckar (Württemberg) on 12 August 1720, died at the abbey of St. Blasien (Black Forest) on 13 March 1793. Having entered the aforementioned abbey at the age of sixteen (1736) and been ordained a priest (1744), he taught philosophy and theology there for ten years; at the same time, being assigned to the library, he had the opportunity to deepen his knowledge of sacred and profane history, and especially of medieval music and liturgy. He completed his education through travels in Germany, Italy, and France, collecting a great many documents (1759–62).
Elected prince-abbot in 1764, he cared for the monks as a father and provided them with new constitutions; when a fire destroyed the monastery in 1768, he rebuilt it and endowed it with a beautiful church, transforming it also into a true academy of scholars and establishing there what was called the first German institute for historical research: in fact, he directed the compilation and publication of Germania Sacra (v.). Deeply devoted to the Holy See, he sought to mediate between episcopalism and the papacy, and effectively opposed Josephinism in the Austrian territories placed under his jurisdiction.
He wrote extensively: in addition to the Iter Alemanicum; Accedit Italicum et Gallicum (St. Blasien 1765) and the Historia Silvae Nigrae Ordinis S. Benedicti coloniae (3 vols., ibid. 1783–1784), in which he discusses the numerous Benedictine monasteries spread throughout the Black Forest from the seventh to the eighteenth century, as well as the various episcopal sees and the principal families of the region;
