Lineage: Descendant of the Ruiz family of Esparza, tied to the palacios (ancestral noble houses) of Esparza and Zariquiegui, which conferred noble status in Basque, Navarre, Spain

Nobility Lawsuit: In 1535, successfully litigated his pleito de hidalguía (nobility suit) before the court in Pamplona, securing recognition of his family’s lordship over the palaces of Esparza and Zariquiegui

Marriage: Married Ana Díaz de Eguino, from another prominent Basque, Navarrese noble family with ties to the Eguino valley and the Subiza lineage

Family: Father of several children, including Lope Ruiz de Esparza Jr. (1569–1651), who emigrated to New Spain in 1593 and became the founder of the Ruiz de Esparza line in Mexico