Her genealogical sketch is here. She died in 1842, not long after this portrait was painted. She bore her first child in December 1837, so I am guessing this id from January 1837 or earlier. She bore a son and then a daughter.
From pinterest.com/anavegamedina5/retratos-de-federico-de-madrazo-y-kuntz/.
María Teresa wears an 1830s dress with wide shoulders exaggerated by puffed sleeves and an almost full skirt. She holds a nosegay.
Keywords: Madrazo y Kuntz, María Teresa Roca de Togores y Alburquerque, de Togores y Alburquerque family, de Togores y Carrasco family, Spanish, straight coiffure, ferroniere, earrings, fitted bodice, off shoulder straight neckline, brooch, quarter length puffed sleeves, bracelets, maxi-length close skirt, shoes, fur boa, nosegay