It was built as the parish church of Saint Louis before becoming the cathedral of the new diocese. The building is of the mid-18th century: the first stone was laid, by Louis XV, on 12 June 1743 and the church was consecrated on 24 August 17 1754. The architect was Jacques Hardouin-Mansart de Sagonne (1711-1778), a grandson of the famous architect Jules Hardouin-Mansart. During the French Revolution it was used as a Temple of Abundance, and badly defaced.
It was chosen, and used, as the cathedral by the post-Revolutionary bishop, who preferred it to the church of Notre-Dame in Versailles, which had been the choice of the preceding constitutional bishop. Its consecration as a cathedral was however severely delayed, and was not performed until 1843, by the diocese's third bishop, Louis-Marie-Edmond Blanquart de Bailleul.
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