Sofia,

1. Matrimonios - your 'typical' marriage record created when the couple actually got married. If your ancestors married, then a marriage record should have been made for them.

2. Informacion Matrimonial - pre-marriage investigation that the parish priest did before he married the couple. These are usually several pages in length (depending on the investigation and the priest they range from a couple of pages to 20 or more pages). This investigation was performed to determine that the marrying parties were in good standing with the Church and that they did not have any Canonical impediments that needed to be dispensed before marriage. All marrying couples should have gone through this process. The actual (#1 above), will indicate whether this was performed. Look for key phrases like: "no haviendo resultado impedimiento alguno" or a reference in the marriage record to an investigation and a page number or date when it took place.

3. Dispensas Matrimoniales - This record was