Both definitely Venetian, Fincati is specific to the area of Padua, Vicenza, Fincato, very common in the Paduan area and Vicenza in particular, should come from the Paduan area, a possible origin is the Celtic name Finched. additions provided by MF Fincato and Fincati, typical of the Vicenza area, derive from the German fink (finch), in some areas of the Veneto the finch is called finco.
Buy a heraldic document with your coat of arms
Verba Volant, Scripta Manent