You may wish to take a look at this:
Fortunata and Jacinta, by Benito Pérez Galdós.
I haven't read this. I'm still trying to locate a copy in an ebook format, but (alas) one does not appear to exist.
I've read some writings by Benito Pérez Galdós and enjoyed them.
https://www.amazon.com/Fortunata-Jac...s%2C772&sr=8-1