The château de Rambouillet is a palace in the town of Rambouillet, Yvelines department, France, 50 km (30 miles) southwest of Paris. It is the summer residence of the Presidents of France.
The château was originally a fortified manor dating back to 1368 and, although amputated of one of its sides at the time of Napoleon I, it still retains its pentagonal bastioned footprint. King Francis I died there, on March 31, 1547, probably in the imposing medieval tower that bears his name. Like the Hôtel de Rambouillet in Paris, the château was owned by Charles d'Angennes, the marquis de Rambouillet during the reign of Louis XIII. Avenues led directly from the park of the castle into the adjacent game-rich forest. More than 200 square kilometres of forest remain, the remnant of the Forest of Rambouillet, also known as the Forest of Yvelines.