RAMBOUILLET, a town of France, in the department of Seine-et-Oise, 17 miles S.W. of Versailles. The dull place is remarkable for nothing but the ugly, gloomy, red brick castle, with five flanking stone towers, surrounded by a large park and forest. In the great tower is the room where Francis I. died in 1547. Here, too, another monarch took his leave of the French throne,—Charles X., under the terror of the fate of Louis XVI., signed his abdication August 2, 1830. Since then the building has not again been the residence of royalty; but the present emperor made it, in 1852, a seminary for officers' daughters. Pop. (1856) 4363.