Holders

• 5 Beatriz Francisca de Vega Menchaca Bermúdez de Castro Borja y Rodríguez de Villafuerte, 7ª countess of Grajal de Campos, 5ª marquise of Montaos * 1653
• 6 Francisco Javier Osorio y Guzmán, 13rd marquess of Alcañices * 1709
• 6 Manuel José Álvar Osorio Vega Enríquez de Guzmán, 6th marquess of Montaos * c. 1675
• 7 Manuel Miguel Osorio y Spinola, 7th duke of Sesto * 1757
• 9 José Isidro Osorio y Silva-Bazán, 16th duke of Alburquerque * 1825
• 12 Miguel Osorio y Martos, 19th duke of Alburquerque * 1886
• Beltran Alfonso Osorio y Diez de Rivera, 20th duke of Alburquerque * 1918
• Francisco de Vega Machuca, 4th count of Grajal, marquess of Montaos * c. 1625
• Juan Miguel Osorio y Bertran de Lis, 21st duke of Alburquerque * 1958

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