Maria de las Ruelas y Sotomayor

Hello Nuestros Ranchos Forum,

This question is really meant for Mary Lou, but if anyone else knows the answer that would be good too. I was recently reading about Maria de la Ruelas on Mary Lou's dropbox:

https://www.dropbox.com/sh/yop1j3tqornd0xh/AABnVNtOvuDJtcuW0Gk5vgBHa?dl=0

and I had a question about Ysabel Marin, daughter of Maria de las Ruelas and Andres Martin Camacho. I had no clue she was the daughter until I read the dropbox. I had thought maybe she was related to the Marin de penalozas until today. But now Im wondering where did she get the Marin name. I thought maybe it was a mistake for Martin but I have 2 records that write her name as Marin. Do you know where it comes from.

Danny C. Alonso