Hildegard, Or Hildegardis Saint, born in 1098 at Bockelheim, in the diocese of Mentz, died at Rupertsberg, near Bingen, in 1180. Her father, who held the rank of count, intrusted her in her 8th year to the abbess of the Benedictine convent of Disibodenberg, of which she afterward became abbess herself. While there she had her first ecstatic visions, of which she drew up a relation. Her fame so increased the number of her nuns, that she built a new convent on the Rupertsberg, on the Rhine. She now wrote several books both in German and in Latin, and published a full account of her revelations in a work called Scivias. She corresponded with all the crowned heads, princes, and prelates of her time, and travelled through the cities of Germany, discoursing publicly on divine things. Her visions or revelations were considered by many as illusions. They were examined by the council of Treves in 1147, and their publication was authorized by Pope Eu-genius III. Hildegard has never been solemnly canonized. Her feast is celebrated on Sept. 17. A complete edition of her writings was published in Cologne in 1566. Among the most important are: Scivias, seu Revelationum Libri III (fol., Cologne, 1698); Sanctoe Hildegardis Epistoloe, in Martene's collection (Rouen, 1700); Hortus Sanitatis, a medical dictionary, which, printed with the Etymologicon of Isidore of Seville, forms an encyclopaedia of the middle ages; and Libri quatuor Elementorum (Stras-burg, 1533). - See Meiners, Be Sanctoe Hildegardis Vita, Script is et Meritis (Gottingen, 1793); Dahl, Die heilige Hildegard (Mentz, 1832); and Reuss, Be Libris Physicis Sanctoe Hildegardis (Wurzburg, 1835).