Louis Philippe D'Orleans Paris, count de, a French prince, eldest son of the duke of Orleans, and grandson of Louis Philippe, born in Paris, Aug. 24, 1838. He was educated under the direction of Regnier in Paris, and after the revolution of 1848 in Eisenach, and subsequently in England. He travelled extensively, and in 1860 visited the East together with his brother the duke de Chartres, who also accompanied him in 1861 to the United States. He served on the staff of Gen. McClellan from November, 1861, till after his retreat to the James river in the summer of 1862, when he returned to England chiefly because of the possibility of complications between the United States and France in regard to Mexico, having received the warmest commendations for courage and military capacity. In 1864 he married his cousin, a daughter of the duke de Montpensier, who has borne him several children. In 1870-71 the count and countess were very active in London and afterward in Paris for the relief of French soldiers during the war, A sum of £500 was sent from New York to the countess for this purpose, contributed by persons who desired by this means to attest their regard for the count's services to the Union; and a considerable amount from other American contributors was placed at the count's disposal for distribution.

At the close of the war with Germany he took up his residence in Paris. He visited the count de Chambord at Frohsdorf in 1873, and was reported to have relinquished his claims to the throne for the present in favor of the latter, on condition of being recognized as the sole heir after Chambord's death to the regal rights of both branches of the Bourbons. He has published Damas et le Liban (London, 1861); Les associations ouvrieres en Angleterre (in French and English, 1869); and Histoire de la guerre civile aux Etats- Unis (4 vols., Paris, 1874-'5; authorized English translation to-be made by Louis F. Tasistro).