But that is of no more authority on such a matter than the narrative of Porzio or the letters of Valori.
Lord Acton--in his essay upon this subject--has not been content to rest the imputation of simony upon such grounds as satisfied M.Yriarte.

He has realized that the only testimony of any real value in such a case would be the actual evidence of such cardinals as might be willing to bear witness to the attempt to bribe them.

And he takes it for granted--as who would not at this time of day, and in view of such positive statements as abound ?--that such evidence has been duly collected; thus, he tells us confidently that the charge rests upon the evidence of those cardinals who refused Roderigo's bribes.
That it most certainly does not.

If it did there would be an end to the matter, and so much ink would not have been spilled over it; but no single cardinal has left any such evidence as Lord Acton supposes and alleges.

It suffices to consider that, according to the only evidences available--the Casanatense Codices( 1) and the dispatches of that same Valori( 2) whom M.Yriarte so confidently cites, Roderigo Borgia's election was unanimous.