The Trocadéro, pronounced [trɔ.ka.de.ʁo], site of the Palais de Chaillot, [pa.lɛ də ʃa.jo], is an area of Paris, France, in the 16th arrondissement, across the Seine from the Eiffel Tower. The hill of the Trocadéro is the hill of Chaillot, a former village.
The place was named in honour of the Battle of Trocadero, in which the fortified Isla del Trocadero, in southern Spain, was captured by French forces led by the Duc d'Angoulême, son of the future king, Charles X, on August 31, 1823. France had intervened on behalf of King Ferdinand VII of Spain, whose rule was contested by a liberal rebellion. After the battle, the autocratic Spanish Bourbon Ferdinand VII was restored to the throne of Spain.
Chateaubriand said "To stride across the lands of Spain at one go, to succeed there, where Bonaparte had failed, to triumph on that same soil where the arms of the fantastic man suffered reverses, to do in six months what he couldn't do in seven years, that was truly prodigious!".
Today the square is officially named Place du Trocadéro et du 11 Novembre, although it is usually simply called the Place du Trocadéro.
The hill of Chaillot was first arranged for the 1867 World's Fair. For the 1878 World's Fair, the (old) Palais du Trocadéro was built here (where meetings of international organizations could be held during the fair). The palace's form was that of a large concert hall with two wings and two towers; its style was a mixture of exotic and historical references, generally called "Moorish" but with some Byzantine elements. The architect was Gabriel Davioud. The concert hall contained a large organ built by Aristide Cavaillé-Coll; the first large organ to be installed in a concert hall in France (it has since been modified twice, and eventually moved in 1977 to the Auditorium Maurice Ravel in Lyon, where it is still in use today). The building proved unpopular, but the cost expended in its construction delayed its replacement for nearly fifty years.