I have discovered that I am a descendant of Lorenzo de Luevana (died abt. 28 Jul 1741 in Aguascalientes) and his wife, Catharina Marin de Tiscareño (died about 25 Jul 1737). I have Lorenzo's parents' names from his burial record, but the parents of Catharina were not mentioned in hers. I looked at some trees at Family Search and Ancestry to try and get a sense of additional ancestors for this couple, and while some names are mentioned, I don't see any specific proof to add connections. For example,  the marriage record for Lorenzo's parents, Andres de Luevana and Cristina de Salazar, does not include parents, but people have identified some; however, there is no noted record to confirm the connection. 

Does anyone have any more on Lorenzo and Catharina (I'd like an identification and proof of her parents) or on Lorenzo's ancestry? 

Thank you!

Rosalinda