Isabella I became queen of Castile in 1474 and ruled jointly with her husband Ferdinand of Aragon. Their reign defeated a rival succession claim, conquered Granada and strengthened royal authority. Isabella sponsored Columbus’s voyage across the Atlantic and supported religious uniformity through the Inquisition and the expulsion of Jews who refused conversion. Her policies helped create a powerful dynastic monarchy while inflicting persecution and opening the way to colonial conquest.
C. W. Gortner’s The Queen’s Vow places Isabella at the centre of a historical novel covering her contested accession and partnership with Ferdinand. She also appears in Philippa Gregory’s The Constant Princess as the formidable mother of Catherine of Aragon. Fiction often admires her determination and political ability, but responsible portrayals also confront the coercive religious and imperial consequences of her rule.
In Jean Plaidy’s Castile for Isabella, Just sixteen years old, all seems lost: is Isabella fated to be the victim of the Queen's revenge, the Archbishop's ambition and the lust of Don Pedro Giron, one of the most notorious womanisers in Castile? In Robyn Young’s Court of Wolves, Harry Vaughan serves Henry on a covert mission to the Spanish court, where Isabella of Castile and Ferdinand of Aragon are completing the war against Granada while Christopher Columbus seeks support for a western voyage. Other novels featuring Isabella I of Castile include Alison Weir’s Katherine of Aragon, Tariq Ali’s Shadows of the Pomegranate Tree, Alison Weir’s Six Tudor Queens, Colin Falconer’s Converso, and Jean Plaidy’s Daughters of Spain.