- Spain--History--Philip IV, 1621-1665 (2)
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- Europe--Politics and government--1517-1648 (1)
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- Olivares, Gaspar de Guzmán, conde-duque de, 1587-1645 (1)
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- Saavedra Fajardo, Diego de, 1584-1648--Correspondence (1)
- Spain--Foreign relations--1516-1700 (1)
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