I am not sure if it is the same family, but I have this information:

FRANCISCO XAVIER MARQUES DE LOS OLIVOS
Male
Parents:
  Father:  PHELIPE MARQUES DE LOS OLIVOS
  Mother:  FRANCISCA XAVIERA SANCHES
Marriages:
  Spouse:  MARIA NARCISA SANCHES
  Marriage:  22 FEB 1751   Tlaltenango De Sanchez Roman, Zacatecas, 
Mexico
Messages:
 Extracted marriage record for locality listed in the record. The 
source records are usually arranged chronologically by the marriage 
date.
Source Information:
 Batch No.:  Dates:  Source Call No.:
 M607139  1704 - 1754  0443968

In the christening of her children Maria Narcisa Sanches is refered 
to as Maria Narcisa Sanches Castellanos and Maria Sanches 
Castellanos.  Also I have seen Maria Castellanos, and I assumed that 
it was perhaps the same person??? The couple did have a daughter 
named Maria Francisca, but I have her married to a Jesus Robles, I 
have to check my notes and see where I got that information.

Do you know if your Maria Francisca married anyone else other than 
Antonio Casas?  This is probably not the same family, but I don't 
know.

Angie

--- In ranchos@yahoogroups.com, Carol Turner <cdian@s...> wrote:
> Angie, I know I'm late in getting back to you but I do have this
> marriage record and Maria Francisca's parents were Francisco Xavier
> Marques married to Ma. Castanes.
> 
> Carol