Diego Lopes de Nava

I am trying to find information on Diego Lopes de Nava and Juana Gertrudes Flores.

He was born about 1720/30, probably in Aguascalientes, and married Juana Gertrudes Flores. They had at least one child, Maria Teresa Lopes de Nava, who married Jose Pantaleon Sandoval (date unknown); she died 14 Jul 1786, and was buried at Nuestra Sra. de Guadelupe, Aguascalientes. Jose Pantaleon Sandoval married again in 1787, Maria Ignacia Lopes de Nava (daughter of Jose Eulogio Lopes de Nava and Maria Antonia Romo de Vivar).

Jose Pantaleon Sandoval had children by both wives.

Are Maria Teresa and Maria Ignacia related?

George Fulton