Birth information for my great-grandmother (1902)

Good afternoon everyone on here. I am trying to track down any information about my great-grandmother, born in 1902 in Lucainena de las Torres. She emigrated from there to Algeria sometime before 1922. I cannot find anything at all about her (neither birth nor emigration travel, nor in fact any evidence of her death in France in 1982, which I remember directly!). It's like she never existed. Her maiden name was Maria Lopez del Aguila. Her married name was Sala. Any guidance on how I could find any information, or an email address for birth registries would be gratefully received!

Thanks, Anne