The Royal Palace of Riofrío (Spanish: Palacio Real de Riofrío, pronounced [paˈlaθjo reˈal de ri.oˈfɾi.o]) is one of the residences of the Spanish royal family. It is under the management of Patrimonio Nacional, a government agency dedicated to the care and maintenance of properties owned by the Spanish state which the royal family uses. The building is set in a wooded deer-park in the municipality of San Ildefonso, in the province of Segovia, central Spain.
The palace is Italian style with a square floor plan and three stories high, designed by the Italian architect Virgilio Rabaglio in the image and likeness of the Royal Palace of Madrid. It is surrounded by an extensive forest of 625 hectares, where fallow deer and deer, among others, live. Used by the monarchs exclusively for hunting, it has only been inhabited as a habitual residence, on a temporary basis, by King Alfonso XII and, previously, by his father, Francisco de Asís, the King Consort.