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1517: Cardinal Alfonso Petrucci, plotter

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On this date in 1517, the Italian cardinal Alfonso Petrucci was put to death for a conspiracy to murder Pope Leo X.

Leo had been acclaimed pope in 1513 at a conclave noted for nearly electing the worst possible pontiff when cardinals hedging their first-ballot votes while they took the temperature of the room all happened to vote alike for the feeblest candidate on the expectation that nobody else was voting for that guy.

Chastened by the near-miss, the leading candidate Giovanni de’ Medici promptly cut a deal with his chief legitimate rival for St. Peter’s seat, Raffaele Riario.*

This arrangement boosted to St. Peter’s throne the first of four popes from the Medici, intriguingly done with the acquiescence of Riario, who was kin to one of the prime movers of the anti-Medici Pazzi Conspiracy from many years before. Both Giovanni de’ Medici and Raffaele Riario were too young to have played a part in those events, but the lingering familial animosity might well bear on what transpired in the papacy of Giovanni de’ Medici — or rather, as we shall know him henceforth, Pope Leo X.

Leo was an entirely worldly character, whose enthusiasm for the peninsular politics that shaped his native habitat would help lead a German cleric to nail 95 theses to the door of a church in Wittenberg later this same year of 1517. “Why does the pope, whose wealth today is greater than the wealth of the richest Crassus, build the basilica of Saint Peter with the money of poor believers rather than with his own money?” Martin Luther demanded (thesis 86) of Leo’s increasingly shameless indulgences racket.

Acting more the Medici than the Vicar of Christ, Leo in 1516 deposed the tyrant of Florence’s neighbor and rival, Siena. The declining Sienese Republic was a prime target of Florence’s expansionist ambitions, and indeed it would be gobbled up in the mid-16th century by the Florence-based and Medici-led Grand Duchy of Tuscany.

In Leo’s time, his coup shattered Siena’s ruling Petrucci family** to the injury of one of Leo’s fellow churchmen, Cardinal Alfonso Petrucci English Wikipedia entry | the much more detailed Italian). Alfonso now had cause to use his office for the agenda of his family and his city, and sought a countervailing anti-Medici arrangement with the condottiero Francesco Maria I della Rovere, whom Leo was even then fighting a war against.

The arrangement came to nothing and Leo assured Alfonso of safe conduct for his return to Rome. It was just a lot of scheming Italian oligarchs doing what they always did, some of them while wearing cassocks.

Except upon Alfonso’s return, Leo had the Petrucci cardinal and another cardinal friendly to him clapped in prison for an alleged plot to poison the pontiff.

Cossetted court cardinals suddenly found themselves accused papicides under the threat (and, for some, the reality) of torture. Hard-to-credit “confessions” duly ensued with Leo enlivening the spring and summer of 1517 with preposterous security theatrics.

On June 8 they assembled in Consistory, when the Pope burst out into complaints. He had evidence, he said, that two other Cardinals whom he had trusted had joined in the conspiracy against him; if they would but come forward and confess he would pardon them freely; if they refused to confess he would have them carried to prison and would treat them like the other [accused]. The Cardinals gazed on one another in alarm, and no one moved. The Pope asked them to speak, and each in turn denied … Leo X’s dramatic stroke was a failure; he could not succeed in his unworthy attempt to induce some unsuspected person to criminate himself. (Source)

It’s hardly past thinking that rival factions would poison off a pope, and there’s been some latter-day research suggesting that something really was afoot. For that matter, Leo’s actual death in 1521 has often been suspected of being aided by an apothecary’s philter.

But outside the dramatics, Leo scarcely handled his prisoners in 1517 as if he were much in genuine fear for his life.

Instead, the practical pontifex maximus used it as a shakedown opportunity against anyone who could be denounced a confederate of the hotheaded young Petrucci. The Genoese Cardinal Sauli, arrested together with his friend Petrucci, was forced to buy his liberty for 50,000 ducats; Cardinal Riario, Leo’s old opposite number from the 1513 conclave, was implicated by Petrucci and Sauli as knowing himself the prospective beneficiary of the plot, and Riario was forced to retire to Naples upon payment of an exit tariff of 150,000 ducats plus his Roman palace. (It remains papal property to this day as the Palazzo della Cancelleria.) Further downmarket, Cardinals Soderini and Adrian fled Rome in despair of discharging the 25,000-ducat fines affixed upon each of them.

Money, however, would not suffice for Cardinal Petrucci, the active center of whatever conspiracy existed. Petrucci probably did murmur something one could construct as treason against his Holy Father, if one regarded them in their ecclesiastical rather than their dynastic positions, and he evidently engaged the Pope’s surgeon Giovanni Battista da Vercelli as an instrument of the proposed assassination or at least made loose talk to that effect.

While the doctor, along with Petrucci’s private secretary, were hauled through the streets to a demonstrative gibbeting, Petrucci was strangled privately in his cell on July 16, 1517. It was done by a Moor out of consideration for the impropriety of a Christian slaying a father of the Holy Church.

Beyond the rent-seeking and the rival-eradicating, Leo leveraged the purported plot to appoint 31 new cardinals in July 1517, basically doubling the College of Cardinals at one stroke while stocking the ranks with men who could offer him political support or timely bribes.

* Riario’s legacy can still be seen around the Vatican to this day: he’s the guy who brought Michelangelo to Rome.

** Leo’s coup deposed one Petrucci and raised up a different, more compliant Petrucci.

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