I was able to find Maria Celeste Feretti's death in 1858 in the Collevecchio register all by myself.

But I cannot upload anything here...Something is off after I uploaded that initial marriage

Anyway, I made out her age 66 and father Gregorio Ferretti.
But like with her marriage, I still cannot make out her mother's name.
Also the last line on the death record "domiciliata" mentions Massimantonio Pio but I cannot decipher whether the words suggest he is already dead or not.
I went backwards to 1830 and could not find his death