Rabanus Maurus

Holy Hierarch Rabanus Maurus (born around 780, reposed 4 February 856) was a Frankish Benedictine monk, theologian, poet and encyclopedist who became Archbishop of Mainz. He wrote the encyclopedia "De rerum naturis", treatises on education and grammar, and commentaries on Scripture. He was among the most prominent teachers of the Carolingian age and was called the teacher of Germany. Before Mainz he was abbot of Fulda. The Roman Martyrology of 2004 gives him the title of saint. He is venerated as a saint of the undivided Church and is commemorated on 4 February (new calendar).