Juan Bautista Martínez del Mazo

Juan Bautista Martínez del Mazo (c. 1611–1667) was a Spanish painter who became one of the most important artists at the court of Philip IV, largely through his intimate connection to Diego Velázquez, whose daughter Francisca he married in 1633. Mazo trained under Velázquez and became his closest associate, eventual successor, and faithful continuator of his style at the Spanish court.

Mazo served as usher of the king's chamber and eventually succeeded Velázquez as court painter after the master's death in 1660. He was a skilled portraitist in his own right, and many works once attributed to Velázquez have been reattributed to Mazo as scholarship has more carefully distinguished their hands. He also excelled in landscape painting, producing panoramic views of Spanish cities and hunting grounds that are among the finest landscapes in Spanish Baroque painting.

His most celebrated independent work is the View of Zaragoza (c. 1647), a panoramic city view painted with remarkable topographical accuracy and atmospheric sensitivity. He also produced copies of Velázquez's works that were sent to other European courts. Mazo died in Madrid in 1667, and while he has inevitably been overshadowed by his illustrious father-in-law, modern scholarship increasingly recognizes him as a significant painter in his own right.

Mazo's painting style is naturally closely related to that of Velázquez, from whom he learned the fluid, atmospheric brushwork and cool, silvery palette that characterized the master's mature style. His portraits employ the same restrained elegance and psychological directness, though typically with somewhat less penetrating characterization than Velázquez's greatest works.

His landscapes represent his most original contribution, featuring panoramic views painted with extraordinary atmospheric sensitivity — distant mountains dissolve into silvery haze, and the Spanish light is captured with remarkable fidelity. These landscapes display a technical freedom and atmospheric mastery that show Mazo at his most independent and accomplished.

Martínez del Mazo occupies a crucial position in Spanish court painting as the link between Velázquez and the subsequent generation. His role in perpetuating Velázquez's style and completing unfinished commissions ensured the continuity of the most sophisticated painting tradition in seventeenth-century Spain.

His landscapes, particularly the View of Zaragoza, represent a significant and original contribution to Spanish painting. His career also illustrates the complex web of personal, professional, and familial relationships that structured artistic life at the Spanish court.