The Roman Catholic Diocese of Lescar (Latin: Dioecesis Lascurrensis; French: Diocèse de Lescar; Basque: Leskarreko elizbarrutia), in south-western France, was founded in the fifth century, and continued until 1790. It was originally part of the Province of Novempopulania, and Lescar held the seventh place among the cities. Its see was the Cathedral of the Assumption in Lescar, begun in 1120; the crypt of the cathedral was also the mausoleum of the family of Albret in the 16th century.[1]
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The old prayer book (Breviarium) of the diocese of Lescar states that Julianus was a deacon of the Church of Trier, who was consecrated a bishop by St. Leontius of Trier (died 19 February 446, according to Gams, p. 318). The editors of Gallia christiana (I, p. 1285) argue that Julianus belongs at the beginning of the fourth century. The Breviarium says that Leontius was a native of Aquitaine, which may be a fact or a wish. Victor Pierre Dubarat (1891). Le bréviaire de Lescar de 1541: réédité avec une introduction et des notes sur nos anciennes liturgies locales (in French and Latin). Pau: L. Ribaut. pp.xvi-xviii and 165–168. The Martyrologicum Gallicanum (quoted by Dubarat at p. xviii) also says that Julian took part in the Council of Orange in 441. The name Julius does appear, but no bishopric is named: J. Sirmond, Conciliorum Galliae Collectio I (Paris 1789), pp. 461-462.
Galactorius was present at the First Council of Agde in 506, signing as Bishop of Béarn (de Benarno): J. Sirmond Conciliorum Galliae Collectio (Paris 1789), I, p. 799. Gallia christiana I, p. 1285.
Albret's Bulls were approved by Pope Julius III on 25 January 1555: Eubel, III, p. 219. He was accused of heresy and expelled in 1569: Du Tems, I, p. 550
Dominique Deslaux de Mesplès had been married, had a family, and was a municipal magistrate in Pau, and President of the Parliament of Navarre. When his wife died, he entered the priesthood. He was nominated bishop by Louis XIV on 31 May 1681, and granted his bulls by Pope Innocent XI on 1 December 1681. Ritzler, V, p. 237 and n. 3.