Xavier Barbier de Montault

Xavier Barbier de Montault (6 February 1830 – 29 March 1901) was a French writer on Catholic Church history, liturgy and antiquities.

He searched the archives of the diocese, studied its inscriptions and monuments, and founded a diocesan museum, a project in which Arcisse de Caumont took a lively interest.

Another sojourn of fourteen years in Rome (1861–75) enabled him to augment his knowledge of liturgy and Christian antiquities.

His first archæological study appeared in 1851 in the "Annales archéologiques", and Adolphe Napoléon Didron assigned him the task of making an index for this publication.

He also wrote numerous articles for other reviews as well as several separate works on iconography, ecclesiastical furniture, liturgy, canon law, etc.