Pedro de la Garza de la Rocha was the son of Pedro de la Garza Rodriguez and Maria Lucia Robles y de la Rocha.
He married Ana Diaz Botello in 1674.
He requested a dispensation to marry Juliana de Hinojosa in 1685. Dispensation source: Guerra et al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.46.
Asencio de la Garza married Clara de Hinojosa.
Feliciana de la Garza married Diego Cadena .
Margarita de la Garza married Miguel de Longoria, Juan Victor Rodriguez.
Pedro de la Garza was born circa 1672. He married Juana Flores de Valdez.
Maria Josefa Francisca de la Garza y Diaz Molina was born circa 1676. She married Diego de Hinojosa Cantu.