Duque de Lerma (Duke of Lerma), Francisco Gómez de Sandoval y Rojas, (b. 1553, Seville, d. 1625, Valladolid), Spanish statesman who died a cardinal, having been the first of the validos - strong men or favourites - through whom the Habsburg kings were to govern Spain until the end of the 17th century.
The son of the 4th marqués de Denia, he was brought up at Seville, where his uncle, Cristóbal de Rojas, was archbishop. A grandee and one of the gentlemen of the king's chamber under Philip II, he won the confidence of the heir to the throne, who on becoming king as Philip III in 1598 entrusted him with the conduct of public affairs and, in 1599, created him Duke de Lerma.
Believing that Philip III might maintain Spanish supremacy in Europe to some extent by relying on dynastic hegemony, he worked to continue the series of marriages between members of the Spanish royal house and Viennese Habsburgs or French Bourbons. He achieved the peace of London between Spain and England (1604) and the 12-year truce with the United Provinces of the Netherlands (1609).
It was Lerma who sponsored the decrees (1609-14) for the expulsion of the Moriscos, or officially Christianized Moors, from Spain - a decision affecting about 350,000 people. Motivated by religious and political rather than economic considerations, he wanted to stop a controversy that could be solved only by drastic means in view of the failure to assimilate the Moriscos with the Spanish Christians.
Lerma accumulated an immense personal fortune - a fact that his enemies exploited when they launched their final attack on his position. His own son Cristóbal, Duke de Uceda, cleverly manipulated by the ambitious Count (later Duke) de Olivares, took part in the conspiracy against Lerma. Foreseeing his fall from favour, Lerma sought leave to retire into private life but first obtained a cardinal's hat from Pope Paul V (March 1618). He was dismissed from power a few months later (October 1618).