Nuño was the son of Gonzalo Rodríguez Girón and Marquise Pérez de Villalobos. The date and place of his birth have not been found.
Nuño González Girón
Gonzalo Rodríguez Girón (c1160-1234)
Rodrigo Gutiérrez Girón (-1193)
Gutierre Téllez
Urraca Díaz
María de Guzmán
Rodrigo Muñoz de Guzmán
Mayor Díaz
Marquise Pérez de Villalobos