According to Pastor, 'the corruption during the reign of Pope Innocent VIII had increased to such an extent that it became possible by bribery to procure the election of such a successor as Pope Alexander VI 
The Venetian envoy to Milan informed his confrère in Ferrara: "that by simony and a thousand villanies and indecencies the papacy has been sold, which is a disgraceful and detestable business", adding that he expected Spain and France to withhold their support from the new pontiff.
After the conclave, a ubiquitous epigram within Rome was: "Alexander sells the Keys, the Altar, Christ Himself—he has a right to for he bought them."

On 10 August after the third ballot, Ascanio Sforza allegedly came to believe his own ambitions of being elected pope were impossible and became susceptible to Borja's offer: the office of Vice-Chancellor and the associated Palazzo Borgia, the Castle of Nepi, the bishopric of Erlau (with annual revenue of 10,000 ducats) and other benefices.
Sforza was also reputed to have received four mule-loads of silver (some sources say gold), which Borja ordered to be delivered immediately after the deal was struck.
The price of the other Cardinals was as follows: Orsini, the fortified towns of Monticelli and Soriano, the legation of the Marches, and the bishopric of Cartagena (with annual revenue of 5,000 ducats); Colonna, the abbey of Subiaco and its environs (with annual revenue of 3,000 ducats); Savelli, Civita Castellana and the bishopric of Majorca; Pallavicini, the bishopric of Pampeluna (Pamplona); Michiel, the suburbicarian see of Porto; Riario, Spanish benefices with annual income of 4,000 ducats and the return of a house in the Piazza Navona (which Sforza had occupied) to the children of Count Girolamo.
Sanseverino's compensation included Rodrigo Borgia's house in Milan.
Cardinals Sclafenati and Domenico della Rovere were to receive abbacies and/or benefices.
Cardinals Andicino della Porta and Conti followed Sforza, whom they had originally supported.

The aforementioned Cardinals plus Borja's own vote numbered 14, one short of the required two-third majority.
However, Cardinals Carafa, Costa, Piccolomini, Cibò, and Zeno, followed by Medici, were unwilling to be bribed.
Cardinal Giuliano della Rovere, followed by Basso, was intractably opposed to Borja's election.
Thus, the eighty-six-year-old Gherardo, the Cardinal Patriarch of Venice, who was paid only 5,000 ducats, constituted the deciding vote.

According to Professor Picotti, who extensively researched the conclave and came to the conclusion that simony had occurred, no accounts of papal income and expenditure exist in the registers of Introitus et Exitus for August 1492, and debts from the Apostolic Camera to Cardinals Campofregoso, Domenico della Rovere, Sanseverino, and Orsini appeared soon afterwards.
The Spannocchi bank, which housed much of Borja's wealth, was said to have nearly crashed after the conclave due to the velocity of transactions.

Some sources say that Charles VIII of France had bankrolled 200,000 ducats (plus 100,000 ducats from the Doge of Genoa) for the election of Giuliano della Rovere, although several otherwise bribable cardinals were hostile to French interference.

Other historians regard politics as a stronger factor within the conclave than pure simony, with the personal rivalry between Giuliano della Rovere and Ascanio Sforza (who had met to discuss the upcoming conclave in Castel Gandolfo even before Innocent VII had died) substituting for the ancient struggle between Naples and Milan, with the intractability between the two parties making Borja a viable candidate.
According to Pastor, 'the corruption during the reign of Pope Innocent VIII had increased to such an extent that it became possible by bribery to procure the election of such a successor as Pope Alexander VI 
The Venetian envoy to Milan informed his confrère in Ferrara: "that by simony and a thousand villanies and indecencies the papacy has been sold, which is a disgraceful and detestable business", adding that he expected Spain and France to withhold their support from the new pontiff. After the conclave, a ubiquitous epigram within Rome was: "Alexander sells the Keys, the Altar, Christ Himself—he has a right to for he bought them."
On 10 August after the third ballot, Ascanio Sforza allegedly came to believe his own ambitions of being elected pope were impossible and became susceptible to Borja's offer: the office of Vice-Chancellor and the associated Palazzo Borgia, the Castle of Nepi, the bishopric of Erlau (with annual revenue of 10,000 ducats) and other benefices. Sforza was also reputed to have received four mule-loads of silver (some sources say gold), which Borja ordered to be delivered immediately after the deal was struck. The price of the other Cardinals was as follows: Orsini, the fortified towns of Monticelli and Soriano, the legation of the Marches, and the bishopric of Cartagena (with annual revenue of 5,000 ducats); Colonna, the abbey of Subiaco and its environs (with annual revenue of 3,000 ducats); Savelli, Civita Castellana and the bishopric of Majorca; Pallavicini, the bishopric of Pampeluna (Pamplona); Michiel, the suburbicarian see of Porto; Riario, Spanish benefices with annual income of 4,000 ducats and the return of a house in the Piazza Navona (which Sforza had occupied) to the children of Count Girolamo. Sanseverino's compensation included Rodrigo Borgia's house in Milan. Cardinals Sclafenati and Domenico della Rovere were to receive abbacies and/or benefices. Cardinals Andicino della Porta and Conti followed Sforza, whom they had originally supported.
The aforementioned Cardinals plus Borja's own vote numbered 14, one short of the required two-third majority. However, Cardinals Carafa, Costa, Piccolomini, Cibò, and Zeno, followed by Medici, were unwilling to be bribed. Cardinal Giuliano della Rovere, followed by Basso, was intractably opposed to Borja's election. Thus, the eighty-six-year-old Gherardo, the Cardinal Patriarch of Venice, who was paid only 5,000 ducats, constituted the deciding vote.
According to Professor Picotti, who extensively researched the conclave and came to the conclusion that simony had occurred, no accounts of papal income and expenditure exist in the registers of Introitus et Exitus for August 1492, and debts from the Apostolic Camera to Cardinals Campofregoso, Domenico della Rovere, Sanseverino, and Orsini appeared soon afterwards. The Spannocchi bank, which housed much of Borja's wealth, was said to have nearly crashed after the conclave due to the velocity of transactions.
Some sources say that Charles VIII of France had bankrolled 200,000 ducats (plus 100,000 ducats from the Doge of Genoa) for the election of Giuliano della Rovere, although several otherwise bribable cardinals were hostile to French interference.
Other historians regard politics as a stronger factor within the conclave than pure simony, with the personal rivalry between Giuliano della Rovere and Ascanio Sforza (who had met to discuss the upcoming conclave in Castel Gandolfo even before Innocent VII had died) substituting for the ancient struggle between Naples and Milan, with the intractability between the two parties making Borja a viable candidate.
1492 papal conclave