Diocese of Aire and Dax
diocese of the Catholic Church in France

The Diocese of Aire and Dax (Latin: Dioecesis Adurensis et Aquae Augustae; French: Diocèse d'Aire et Dax) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in France. It comprises the département of Landes, in the région of Gascony in Aquitaine.
It was a suffragan diocese of the Archdiocese of Auch under the Ancien Régime, but was not re-established until 1822, when it was again made a suffragan of the re-established Archdiocese of Auch, and was assigned the territory of the former Diocese of Aire and Diocese of Acqs (Dax). It is now a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Bordeaux.
It has been known since 1857 as the Diocese of Aire and Dax. It is a co-cathedral diocese, with cathedras in the Cathedral St-Jean-Baptiste d' Aire and in Nôtre Dame de Dax.
On April 6, 2017, the resignation letter of recent Bishop Herve Gaschignard was officially accepted by Pope Francis following allegations that Gaschignard engaged in inappropriate behavior with young people.
History
The first reference to a bishop of Aire, on the river Adour, in history is to Marcellus, represented at the Council of Agde, 506. Aire was also the home of St. Philibert; it numbered among its bishops during the second half of the sixteenth century François de Foix, Count of Candale, an illustrious mathematician, who translated Euclid and founded a chair of mathematics at the University of Bordeaux, though he never visited his diocese.
The public source identifies “Diocese of Aire and Dax” as diocese of the Catholic Church in France. This brief keeps that definition visible, then builds a research path around Diocese, Aire and diocese.
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The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Aug 22, 2025. The linked authority identifier is Q866776. VIAF identifies the subject as 125029702. The Library of Congress control number is nr94023788. 4 of 4 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1822, 1857 and 2017.
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This entry incorporates text from “Diocese of Aire and Dax” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.