Isabella I was Queen of Castile and León. She and her husband Ferdinand II of Aragon brought stability to both kingdoms that became the basis for the unification of Spain. Later the two laid the foundations for the political unification of Spain under their grandson, Charles V, Holy Roman Emperor. Isabel's reign is often viewed as a joint reign with that of her husband, Ferdinand. However, Isabel made great reforms in her kingdom of Castile and did many of them without the assistance of her husband. In fact, according to the terms set forth under the marriage contract of 1469 as well as the Segovia concordat of 1475, Isabel was the sole legitimate ruler of Castile. After a struggle to claim her right to the throne, she reorganized the governmental system, brought the crime rate to the lowest it had been in years, and pulled the kingdom out of the enormous debt her brother had left behind. Her reforms and those she made with her husband had an influence that extended well beyond the borders of their united kingdoms.... More • http://en.wikipedia. ... of_Castile View • Books • Images • Videos • Search Related • Royalty • Statesmen • America • April 22 • Bahamas • Caribbean • Castile • Colonialism • León • New Spain • Renaissance • Rulers • Spain • Taurus • Trastámara • Valladolid • North America • South America • Women • 15th Century • Icons • People