Marin de Herrera in Tlaltenango

Hi, I've read the film entry of Prudencio Marin de Errera where he married
Nicolaza Paula San Martin Estrada where he married in 1757

It says "no resulto impedimento alguno" and does not mention that he was a
"viudo".

Also, it says he was vecino del rancho de "Ojo dela rana"
It appears he might have been born about 1744

She was from the _________ dela Ena?
His father was Luis Marin Herrera and mother Maria Roza Serrano (both
deceased by 1757)
Her father was Gregorio San Martin Estrada and Maria Elena Magallanas

I am trying to figure out where they all were born??? Although both
Prudencio and Nicolaza are listed as "Espanoles", I truly doubt they were born in
Spain....

The reason I think that Prudencio might have been married several times is
that in batch number C607125, film number 443811 - a grandaughter born in 1817
(Maria Felipa de los Dolores) was born to PRUDENCIO HERRERA and MANUELA
ESTRADA and RODUCINDO DE ROBLES and PAULINA CABALLERO - the father was LUIS
HERRERA and RUFINA ROBLES. Additionally, there was another granchild born in 1825
with the same data: Jose Andres Herrera Robles - same parents.

But then in 1829, once again a grandchild was born Jose Francisco Herrera
Robles to Luis Herrera, and it states that the grandparents were Prudencio
Herrera and Paula Estrada.

Luis Herrera (son of Prudencio) was a widower when he married Rufina de
Robles.