John, Prince of Asturias and Girona was the only son of King Ferdinand II of Aragon and Queen Isabella I of Castile, and heir apparent to both their thrones for nearly his entire life.
Detail from the Madonna of the Catholic Monarchs, c. 1491–93
Francisco Pradilla Ortiz's painting Retinue of the Baptism of Don Juan, son of the Catholic Monarchs, Along the Streets of Seville, 1910
Education of Prince John (1877) by Salvador Martínez Cubells. This painting depicts the critical early education of John, Prince of Asturias, under Queen Isabella I and Cardinal Cisneros, emphasizing the preparation of the sole male heir for uniting Aragón and Castile.
Joanna or Joan was queen of Castile from 1504 and queen of Aragon from 1516 to her death in 1555. She was the daughter of Queen Isabella I of Castile and King Ferdinand II of Aragon. Joanna was marrie
Portrait by Juan de Flandes, c. 1500
Joanna with her parents, Isabella and Ferdinand; "Rimado de la conquista de Granada", by Pedro Marcuello, c. 1482
The marriage contract of Joanna and Philip (1496).
Joanna of Castile and Philip the Fair, stained glass, Basilica of the Holy Blood in Bruges.