(b Bouzemont, Vosges, 7 Dec. 1835; d Conques, Belgium, 8 Dec. 1923). Belgian scholar. His work became, and remains, the basis for the official Vatican edition of Gregorian chant (the Graduale romanum, 1908)—the culmination of a 19th-century movement to halt the accommodation of plainchant to later musical styles and to restore it to its medieval form. In 1860 Pothier entered the French Benedictine monastery of Solesmes, where he remained until 1893, assisting Paul Jausions in the preparation of chant books for the abbey and completing the work after Jausions's death. Pothier's work was later modified by André Mocquereau.
From The Oxford Companion to Music in Oxford Reference.