Who created "Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares"?

Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares was created by Juan Bautista Martínez del Mazo in ca. 1636 or later.

What medium is "Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares"?

Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares is Oil on canvas.

Yes, Don Gaspar de Guzmán (1587–1645), Count-Duke of Olivares is in the public domain and available for free download under CC0 license.

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This artwork was created ca. 1636 or later.

Juan Bautista Martínez del Mazo, ca. 1636 or later