Delgado on Pendencia in Sierra de Pinos

Hola primos y primas,

In my lines I have Diego Delgado and Isabel de Islas Martinez Lozano, married 22 Feb 1637 in Aguascalientes. She was daughter of Cristobal Martinez Lozano and Maria de Islas. They’d live on Pendencia in Sierra de Pinos, I have them with four offspring:

1. Baltasar Delgado, m. Petronila Niño
2. Maria de Islas, m. Diego de Guzman y Rivera
3. Juan Delgado, m. Anna Gonzalez de Rubalcava
4. Francisco Delgado, m1. Petra Martin Chavez, m2. Juana Delgado y Valenzuela.

Diego Delgado died sometime before 1671, probably in Pinos, and Isabel de Islas Martinez Lozano died in Charcas, SLP, and was buried 16 Jul 1676. Her albaceas were her son, Baltasar and Juan, both who lived in Charcas.

I know Diego Delgado had an older brother named Juan Delgado, who also lived on Pendencia, born around 1604-1607.

Question: are they sons of Diego Delgado and Juana Diaz? Their son, Juan Delgado (m1. Juana Rivera, m2. Maria de Vargas), would have been the same age as Diego Delgado’s older brother. (whose signature I have, but none appears on Juan Delgado-Diaz's 1669 dispensa, to compare).

Anyone know anything?

Gracias y saludos,
Manny Diez Hermosillo