La Villa de Zamora: de Bejar, Lupiana, Corona de Anaya, Lopez de Fuenllana and Ruiz families potential relationships

Hello forum.

There is a very interesting document, a suit filed by Nicolas Ruiz against his father Br. Jose Ruiz in 1672.

This is a very long document plenty of dozens of declarations of witnesses, some of them closely related to Jose and Nicolas Ruiz.

1.- Jose Corona de Anaya and Jose Ruiz are first cousins (see image 362/795).

Many of the witnesses give Jose ruiz's mother's name: Isabel Lopez de Fuenllana.

The names of Jose Corona de Anaya's parents are given in this document, they are Garcia Alvarez Corona and Juana Lupiana.

This is my guess, the mothers of the two of them are sisters, the daughters of Alonso de Lupiana and Catalina Lopez de Fuenllana. This couple is mentioned in this other thread, Catalina is one of the sisters of Diego de Fuenllana and Beatriz Lopez de Fuenllana.

2.- Gregorio de Bejar, resident of Tinguindin, 47 years, 6 months and 18 days old, says his father and Jose Ruiz are 2nd. cousins (see image 296/795).

This Gregorio de Bejar is the grandson of Gregorio de Bejar and Juana de Sandoval. According to Guillermo Padilla Origel "Arbol genealogico de los Bejar de Tinguindin", Juana de Sandoval is the daughter of Gonzalo de Sandoval and Isabel Perez.

The said relationship is true if Juana de Sandoval (Gregorio de Bejar's grandmother) and Isabel Lopez de Fuenllana (Jose Ruiz´s mother) are first cousins.

The names of the parents of Juana de Sandoval are Gonzalo de Sandoval and Isabel Perez according to Guillermo Padilla Origel.

Gonzalo de Sandoval died before 1585 and Isabel Perez was the owner of some houses in Zamora (see Gregorio Torres Quintero / Genaro Hernandez Corona "Tesis Pedagogicas", p. 158).

One more of the sisters of Diego de Fuenllana and Catalina Lopez de Fuenllana (proposed Isabel Lopez de Fuenllana's mother) is "Isabel del Castillo mujer de (Jeronimo) Orozco".

This is my guess, could Isabel (Perez), the widow of Gonzalo de Sandoval and Isabel (del Castillo), the wife of Jeronimo de Orozco, be the same person?. If it is this way, the mother of Juana de Sandoval (Isabel Perez/del Castillo) and the mother of Isabel Lopez de Fuenllana (Catalina Lopez de Fuenllana) are sisters.

Any help proviing/disproving the aforementioned relationships is greatly appreciated.