''Don Gaspar De Guzman, Conde Duque D'Olivarez, after Diego Velazquez', 1636 ( 1891). Creator: Unknown.
2-950-871 - The Print Collector/Heritage Images
''Don Gaspar De Guzman, Conde Duque D'Olivarez, after Diego Velazquez', 1636 (1891). From "The Graphic. An Illustrated Weekly Newspaper", Volume 44. July to December, 1891.