Isabella, Countess of Trapani (1834-1901), ca. 1860
Archduchess Maria Isabella of Austria, Princess of Tuscany (21 May 1834 –14 July 1901) was a princess of Bourbon-Two Sicilies and later Archduchess of Austria. Maria Isabella was born in Florence, Grand Duchy of Tuscany, the daughter of Leopold II, Grand Duke of Tuscany and his second wife Princess Maria Antonia of Bourbon-Two Sicilies. Maria Isabella married her uncle Prince Francis, Count of Trapani, youngest son of Francis I of the Two Sicilies and his wife Maria Isabella of Spain, on 10 April 1850. Maria Isabella and Francis had six children.
source: Royal Collection