Her Wikipedia article is here. She married twice, the conditions of the second marriage caused her to be deposed. Her daughter by her first marriage to King Fernando VII produced two daughters, Isabel, later Isabel II, and Luisa Fernanda.

1830 Maria Cristina and Fernando VII walking in the gardens by Luise de Cruz y Rios (Museo de Bellas Artes de Asturias - Oviedo Spain)

María Cristina de Borbón dos Sicilias Reina Regante de España by Luis de la Cruz y Rios (Ayuntamiento de Sevilla - Sevilla, Andalucía, Spain)

ca. 1831 (estimate based on age of child) SM la reina regente Doña María Cristina de Borbón dos Sicilias y SM la reina Doña Isabel II de España by ? (location ?)

1831 María Cristina de Borbón by Valentín Carderera y Solano (Museo Nacional del Romanticismo - Madrid, Spain)

Maria Cristina of the Two Sicilies by Carlos Blanco (Reales Alcázares de Sevilla - Sevilla, Andalucia, Spain)

María Cristina de Sicilies-España wearing an expanive crinoline dress by André-Adolphe-Eugène Disdéri
