Duke of Rivas (Spanish: Duque de Rivas) is a hereditary title in the Peerage of Spain, accompanied by the dignity of Grandee and granted in 1793 by Charles IV to Juan Martín Pérez de Saavedra y Ramírez, with the denomination of "Duke of Rivas de Saavedra", later abbreviated to "Duke of Rivas" by Isabella II.[2][3]
The Dukedom of Rivas was created by elevating the Marquessate of Rivas de Saavedra into a dukedom. The original marquessate had been granted by Philip IV in favor of the field marshall José Ramírez de Saavedra y Ulloa, with the initial denomination of "Marquess of Rivas" by royal decree of May 4, 1637, and royal dispatch of July 25, 1641. The holders of the primitive grant appear indistinctly as Marquesses of "Rivas" or "Ribas", in accordance with the orthographic indeterminacy that was usual before the 19th century, and with or without the surname of "Saavedra" added to the original name.[citation needed]
Palace of Viana in Madrid, residence of the Dukes of Rivas and later of the 2nd Marquess of Viana, who inherited it from his grandfather the Duke of Rivas
Charles IV had granted "honours and treatment of Grandee of Spain" to the 4th Marquess of Rivas, by royal decree of 12th November 1789 and royal dispatch of 21st November 1792, a year before elevating the title to a dukedom.
The title takes its name from the town of Rivas de Jarama, which had been the domain of the 1st Marquess since 1628. This ancient municipality, located to the southeast of the court of Madrid is today integrated into that of Rivas-Vaciamadrid.
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