Frédéric III of Mouzon (Werric)

Frédéric III, also called Werric, was the thirty-first regular abbot of Notre-Dame de Mouzon, succeeding Lambert d'Yvois in 1345. On 21 December 1345 he swore fealty to Archbishop Jean de Vienne of Reims and appears in acts of 1346.

Mouzon's necrology records his death on 24 October, and by August 1347 Pierre II Hazard had succeeded him. Abbot lists gave him the arms of the châtelains of Yvois, possibly marking kinship with Lambert.