Ebrardus an author and theologian of Bethune, in France, who lived during the latter part of the 12th century and the beginning of the 13th. He is known only by his writings. One of the principal of these, his Gracismus, a collection of rules of rhetoric, prosody, grammar, and logic, was for many years used as a textbook. His principal theological works are Liber antihaeresis against the Cathari, which was first published under the title Contra Waldenses in Gretser's Trias scriptorum, contra Waldenses (Ingolstadt, 1614, 4to), and reprinted in Bibl. Patr. Max. (of Lyons, volume 24), and lastly in Gretser's Opera Omnia (volume 12, part 2). — Herzog, Real-Encyklopadie, 3:625.