Gertrudis Díaz de León (m. Juan Álvarez-Tostado)

Hi all--
Does anyone know who the parents of Gertrudis Díaz de León are? She married Juan Álvarez-Tostado circa 1708 either in Teocaltiche or Nochistlan. I am her descendent via her daughter Ana Álvarez-Tostado who married Miguel Antonio Márquez de los Olivos in 1751, Jalostotitlan.

Any leads will be appreciated. Thanks!