Giovanni II Bentivoglio. Dated: c. 1474/1477. Dimensions: overall: 54 x 38.1 cm (21 1/4 x 15 in.) framed: 83.8 x 66 x 7.9 cm (33 x 26 x 3 1/8 in.). Medium: tempera on poplar panel. Museum: National Gallery of Art, Washington DC. Author: ERCOLE DE' RO