The following couple had plan to marry but they have a 3rd with 4th Consang.
I believe the family tree for Pedro Joseph might be correct but Rosalia's line might lead to Antonia de Ortega known as Estrada married to Diego Contreras see last item. I really don’t know much about them. Hopefully somebody has them in their line as well.

Pedro Joseph Peralta
1751–Deceased • LY9W-LKK
Rosallia Contreras
1753–Deceased • LY94-WHC

The image link is for the request of a dispensa 3rd with 4th consang.

https://familysearch.org/ark:/61903/3:1:S3HY-63LQ-W87

Jacinta de Ortega 1st Antonia de Ortega
Bernardo Dias 2nd Manuel Contreras
Guadalupe Dias 3rd Rosalia Contreras (novia)
Pedro Joseph Peralta (Novio) 4th

Joseph Dias de Tiscareno
1663–1728 • L23B-CVL
Jasinta De Ortega
1665–1729 • MQM4-SKR
Marriage: 12 February 1679
Aguascalientes, Mexico

Bernardo Dias Tiscareño
–1746 • M3B6-T7T
Manuela Flores De Robles (Flores Torres)
1711–1776 • M3CR-7LT
Marriage: 21 April 1727
Aguascalientes,Aguascalientes,Mexico

Carlos Santiago Murillo Peralta
Deceased • KHD1-6R8
Maria Guadalupe Dias De Tiscareno
1728–Deceased • LY94-WH2
Marriage: 1750
Aguascalientes,Aguascalientes,Mexico

Diego De Contreras
1655–1748 • L4KW-GHC
Dona Antonia De Estrada
1665–Deceased • L567-2RF
Marriage: 24 JAN 1683
El Sagrario,Aguascalientes,Aguascalientes,M