Marquisate of Casa Real () is a title of the Spanish nobility.
The title was granted on 8 November 1760 to the existing viscount of San Jerónimo to Francisco García de Huidobro, Life-Treasurer of the Royal Mint of Santiago de Chile and Knight of Santiago.
Vicenta Márquez de la Plata y Ferrándiz received the title in 2008 after the death of his father, José María Márquez de la Plata y Caamaño.
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