Question On Dispensations

I would like to verify with the group the different distinctions that come up when looking at a marriage dispensation.

Concerning the dispensation here:

https://www.familysearch.org/ark:/61903/3:1:9392-GR7B-JV?i=155&cc=1874591&cat=294030

It states: "El impedimento de afinidad licita en prmier grado igual"

I understand this to be a legal relationship in the first degree. Does this mean that the new bride is the sister of the deceased wife?

The charts here: https://ccoo1.webs.upv.es/Legislacion/Trabajo/Decreto_34_consanguinidad.htm, are mildly confusing and I would like to double check.

Based on other records, the deceased wife was 18 at the time of her death in 1886. The new wife is 32 in 1892, so there would have been an 8 year difference between the two women. Additionally, the old wife's parents are listed as Jesus Chavez and Antonia Ortega. The new wife's parents are Juan Jesus Chavez and Antonia Gutierrez. I don't want to jump to the conclusion just yet that Antonia is an Ortega Gutierrez/Gutierrez Ortega just yet, and I am looking for direction in the dispensation.