Countess of Altamira and Her Son Vicente Isabel by Agustín Esteve, ca. 1778
She is María Ignacia Álvarez de Toledo, marquesa de Astorga (1757-1795). Her son is Vicente Isabel Osorio de Moscoso, Count de Trastamara (1777-1837).
She married 11 April 1774, in Madrid, to Vicente-Joaquín de Osorio-de-Moscoso y Guzmán, with whom she had five children:
- Vicente-Isabel de Osorio-de-Moscoso y Álvarez-de-Toledo, XII Conde de Altamira 1777-1837
- Manuel de Osorio-de-Moscoso y Álvarez-de-Toledo ca 1779-
- José de Osorio-de-Moscoso y Álvarez-de-Toledo ca 1790-
- Bernardo de Osorio-de-Moscoso y Álvarez-de-Toledo 1793-1819
- Agustina de Osorio-de-Moscoso y Álvarez-de-Toledo ca 1795-
The lady on this painting is the same as the one on this painting here, holding Vicente’s sister María Agustina. There is a bust of her in the Museo del Prado, see this link here.
“María Ignacia wears a unique dress with a basque waistline set off with a frilly peplum and a (not off shoulder) scoop neckline framed by a double bertha while her skirt and over-skirt are not supported.”
source: Grand ladies, WikiCommons