sabella II (October 10, 1830 – April 10, 1904), Isabel II in Spanish, was Queen regnant of Spain ("Queen of the Spains" officially from August 13, 1836, Isabella II the "queen of Castile, Leon, Aragon,...") She was Spain's first and so far only queen regnant, although she is sometimes considered the third Queen Regnant of Spain, as previous monarchs of Leon and Castile were counted as kings and queens of Spain. Counting the monarchs of Aragon as well, she is the fourth queen regnant of Spain.
Isabella was born in Madrid in 1830, the eldest daughter of Ferdinand VII, king of Spain, and of his fourth wife and niece, Maria Cristina, who was a Neapolitan Bourbon and also a grand-niece of Marie Antoinette. Maria Cristina became queen-regent on September 29, 1833, when her daughter Isabella, at the age of three years, was proclaimed queen on the death of the king.
Isabella succeeded to the throne because Ferdinand VII induced the "Cortes Generales" to help him set aside the Salic law introduced by the Bourbons in the early 18th century, and to re-establish the older succession law of Spain. The first pretender, Ferdinand's brother Carlos, fought seven years, during the minority of Isabella, to dispute her title. His supporters and descendants were known as Carlists and the fight over the succession was the subject of a number of Carlist Wars in the 19th century.
ISABEL II COINAGE