Catalina Gómez de Sandoval y Mendoza, 8th Duchess of the Infantado

Catalina Gómez de Sandoval y Mendoza (1616–1686) was the 8th Duchess of the Infantado, gaining the title after the death of her brother in 1657.

As a member of the prestigious Mendoza family, Catalina was next in line to receive the Dukedom of the Infantado after the death of her brother, Rodrigo Díaz de Vivar Gómez de Sandoval y Mendoza, the 7th Duke who was childless.

Catalina preferred to live in Pastrana with her husband rather than Guadalajara, the traditional seat of the Dukes of the Infantado.

The Duke of Medinaceli continued to fight against this decision until 1677 when all matters were settled in favor of Catalina.

In addition to amassing hereditary titles, Catalina also built the Convento de los Capuchinos de Jadraque, Donated much to the Carmelites of Guadalajara (Where her daughter Leonor became a member), and bought a house for the Dukes of the Infantado in Chamartín de la Rosa, Madrid where in 1808, Napoleon Bonaparte would stay when his troops occupied the city.