Honore Theodoric Paul Joseph Dalbert Luynes, duke de, a French archaeologist, born in Paris, Dec. 15, 1802, died in Rome, Dec. 14, 1867. He was descended from the elder branch of the ancient family of Albert, which assumed alternately the names of Luynes and Chevreuse, from an intermarriage in 1622 of Claude de Lorraine, one of the early lords of the town of Chevreuse, with the widow of Charles d'Al-bert, duke de Luynes, the latter a constable of France, who was mainly instrumental in the overthrow of the adventurer Concini (see An-cre, Marshal d'), and superseded him in the favor of Louis XIII. His father was one of the richest landed proprietors of France. His mother was Mme, de Chevreuse (1785-1813), whom Napoleon banished from the court on account of her bold comments on the imperial regime. At the interposition of Talleyrand she was afterward permitted to return, and was even appointed lady in waiting to Josephine; but she did not conceal her dislike of the emperor, and refusing his order to escort the captive queen of Spain to France, on the ground that she would not perform the function of a jailer, she was again expelled from Paris, as were Mme. Recamier and Mme. de Stael. After the banishment of his mother, young Chevreuse, or De Luynes, as he afterward signed his name, was educated by his grandmother Mme. de Luynes, and spent seven years in the military service.

His attention was turned to archaeological studies by the discovery in Italy, on an estate belonging to him, of the remains of the Greek city Metapontum. After the revolution of July, 1830, he equipped at his own expense the national guard of Dain-pierre, and evinced his readiness to make further pecuniary sacrifices for the support of the government, but refused to take his.seat in the legislature. In 1848 he became a member of the constituent assembly, and in 1849 of the legislative assembly. He was. opposed to the republican party, and also hostile to Louis Napoleon, and was imprisoned for a short time after the coup d'etat of Dec. 2, 1851. He was a generous patron of art and artists, collected at his manor of Dampierre a remarkable gallery of works of art, was admitted in 1830 to the institute as a free member of the academy of inscriptions and belles-lettres, and was appointed in 1854 to superintend the long projected catalogue of the imperial library, to which in 1862 he presented his collection of coins and medals.

In 1864 he made an archaeological and scientific tour in Syria and Palestine, an account of which was published after his death, by his grandson, under the direction of Count de Vogue: Voyage d'exploration d la Mer Morte, d Palmyre, d Petra, et sur la rive gauche du Jourdain (3 vols. 4to, Paris, 1871, relating to history and geography; a 4th volume, on geology, mineralogy, and palaeontology, is to be added by Louis Lartet). Among the other works of De Luynes are: Etudes numismatiques (1835); Metaponte, in concert with Debacq (1836); and Choix de medailles grecques (1840).