Translation in (parenthesis) Requested

https://www.familysearch.org/ark:/61903/3:1:939D-6898-7R?view=index&personArk=%2Fark%3A%2F61903%2F1%3A1%3AD15P-MK2M&action=view&lang=en&groupId=M9SH-MYZ 

is for a marriage of Gabriela Alvarez and her parents are listed as Jose Maria Alvarez (in the parenthesis I need help understanding, something like "quien ante mi presto el consentimierrto necesario) and Gertrudis Orozco. . . .

My Spanish is not sufficient to understand what the priest is saying within the parenthesis so any help understanding what is being said here would be very much appreciated.

thanks,

Joseph