1634. Oil on canvas. Museo del Prado, Madrid, Spain. Read Note.
Count-Duke of Olivares, Caspar de Guzmán (1587-1645) Spanish nobleman and politician, Duke of San Lücar. He was born in Rome where his father was an ambassador. He was the favorite of Philip IV of Spain, and his prime minister for 22 years. He wrung money from the country to carry on foreign wars. His attempts to rob people of their privileges provoked insurrections and roused the Portuguese to shake off the Spanish yoke in 1640, and the king was obliged to dismiss and exile him in 1643.
See: Diego Velázquez. Portrait of Caspar de Guzman, Count of Olivares, Prime Minister of Philip IV.