Palace of Riofrío Monument · Real Sitio de San Ildefonso, Alfoz de Segovia, Segovia The Palacio Real de Riofrío, managed today by Patrimonio Nacional, stands in the Riofrío enclave, within the territory of the Real Sitio de San Ildefonso, eleven kilometres from the town of San Ildefonso. Isabel de Farnesio had it built in 1751, square in plan and three storeys high, to a design by the Italian architect Virgilio Rabaglio, with exterior decoration by Pedro Sermini, in the image of the Palacio Real de Madrid. It is surrounded by a forest of 625 hectares with fallow deer and red deer, and the monarchs used it almost exclusively for hunting; only Francisco de Asís de Borbón and Alfonso XII lived in it temporarily. Inside, the Hunting Museum, the ceremonial staircase, the chapel and its collection of paintings, tapestries and furniture stand out; it has been open to the public since 1965. Photo: Borjaanimal (CC BY 4.0) What to see and do in Real Sitio de San Ildefonso