Portrait of king philip iv of spain (1601-1665), who was the son of king philip iii of spain and queen margaret of austria. Object Type: painting. Date: circa 1656. Dimensions: height: 66 cm (25.9 in); width: 40 cm (15.7 in). Medium: oil on canvas. Collection: Royal Academy of Fine Arts of San Fernando. Velazquez-taller-felipe IV-academia