Louis Charles Philippe Raphael D'Or-Leans Nemours, duke de, a French prince, the second son of Louis Philippe, born in Paris, Oct. 25, 1814. He was in February, 1831, elected king of the Belgians by the national congress assembled at Brussels, but his father prohibited him from accepting the crown. He served in the Belgian campaign of 1831, and subsequently in Algeria, where he gained in 1837 the rank of lieutenant general. The chamber declined in 1840 to grant him 500,000 francs, which led to the overthrow of the Soult cabinet. He married in the same year the princess Victoria of Saxe-Ooburg-Gotha. In 1841 he returned to the army in Algeria. The death of his elder brother, the duke of Orleans (July 13, 1842), led to a proposition, which was not adopted, to make him regent in the event of his father's death. On the outbreak of the revolution of 1848 he accompanied the duchess of Orleans on her fruitless errand to the chamber, and subsequently he remained with the rest of the Orleans family in England till 1871, when they were permitted to reside in France. The duchess died Nov. 10,1857, leaving two sons: the count d'Eu, husband of the presumptive empress of Brazil, and a marshal in the Brazilian army; and the duke d' Alengon (born at Neuilly, July 12, 1844), a naval officer, who married a Bavarian princess in 1868. The princess Marguerite, the eldest of the duke's two daughters, married the Polish prince Ladislas Czartoryski, Jan. 15, 1872.