Christian de Montmorency-Luxembourg (9 February 1675 – 23 November 1746), prince of Tingry, count of Beaumont and count of Luxe, was a marshal of France (1734).
He was the 4th son of marshal François-Henri de Montmorency-Luxembourg, duke of Piney and Madeleine de Clermont-Tonnerre.
He played a decisive role in the battle of Denain in 1712.
In 1722 he commissioned the building of hôtel Matignon.
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